diff --git a/Source/ApplicationServices/LibraryCommands.cs b/Source/ApplicationServices/LibraryCommands.cs
index d166a158..e5a9b04f 100644
--- a/Source/ApplicationServices/LibraryCommands.cs
+++ b/Source/ApplicationServices/LibraryCommands.cs
@@ -467,6 +467,7 @@ namespace ApplicationServices
 
             var results = libraryBooks
                 .AsParallel()
+                .Where(lb => !lb.AbsentFromLastScan)
                 .Select(lb => Liberated_Status(lb.Book))
                 .ToList();
             var booksFullyBackedUp = results.Count(r => r == LiberatedStatus.Liberated);
diff --git a/Source/DataLayer/QueryObjects/LibraryBookQueries.cs b/Source/DataLayer/QueryObjects/LibraryBookQueries.cs
index 24063f0c..f10350f5 100644
--- a/Source/DataLayer/QueryObjects/LibraryBookQueries.cs
+++ b/Source/DataLayer/QueryObjects/LibraryBookQueries.cs
@@ -107,8 +107,9 @@ namespace DataLayer
             => bookList
                 .Where(
                     lb =>
-                        lb.Book.UserDefinedItem.BookStatus is LiberatedStatus.NotLiberated or LiberatedStatus.PartialDownload
-                        || lb.Book.UserDefinedItem.PdfStatus is LiberatedStatus.NotLiberated or LiberatedStatus.PartialDownload
+                        !lb.AbsentFromLastScan &&
+                        (lb.Book.UserDefinedItem.BookStatus is LiberatedStatus.NotLiberated or LiberatedStatus.PartialDownload
+                        || lb.Book.UserDefinedItem.PdfStatus is LiberatedStatus.NotLiberated or LiberatedStatus.PartialDownload)
                     );
     }
 }
diff --git a/Source/LibationAvalonia/Assets/LibationStyles.xaml b/Source/LibationAvalonia/Assets/LibationStyles.xaml
index 7b3ae474..e3569ba2 100644
--- a/Source/LibationAvalonia/Assets/LibationStyles.xaml
+++ b/Source/LibationAvalonia/Assets/LibationStyles.xaml
@@ -8,6 +8,8 @@
 		<SolidColorBrush x:Key="ProcessQueueBookCancelledBrush" Color="Khaki" />
 		<SolidColorBrush x:Key="ProcessQueueBookDefaultBrush" Color="{StaticResource SystemAltHighColor}" />
 		<SolidColorBrush x:Key="ProcessQueueBookBorderBrush" Color="Gray" />
+		<SolidColorBrush x:Key="DisabledGrayBrush" Color="#60D3D3D3" />
+		
 	</Styles.Resources>
 	<Style Selector="TextBox[IsReadOnly=true]">
 		<Setter Property="Background" Value="LightGray" />
diff --git a/Source/LibationAvalonia/ViewModels/GridEntry.cs b/Source/LibationAvalonia/ViewModels/GridEntry.cs
index cf21da7c..2d0dc3b8 100644
--- a/Source/LibationAvalonia/ViewModels/GridEntry.cs
+++ b/Source/LibationAvalonia/ViewModels/GridEntry.cs
@@ -78,7 +78,6 @@ namespace LibationAvalonia.ViewModels
 		public abstract bool? Remove { get; set; }
 		public abstract LiberateButtonStatus Liberate { get; }
 		public abstract BookTags BookTags { get; }
-		public abstract bool IsSeries { get; }
 		public abstract bool IsEpisode { get; }
 		public abstract bool IsBook { get; }
 		public IBrush BackgroundBrush => IsEpisode ? App.SeriesEntryGridBackgroundBrush : Brushes.Transparent;
diff --git a/Source/LibationAvalonia/ViewModels/LiberateButtonStatus.cs b/Source/LibationAvalonia/ViewModels/LiberateButtonStatus.cs
index 6d2e4f58..6cccd411 100644
--- a/Source/LibationAvalonia/ViewModels/LiberateButtonStatus.cs
+++ b/Source/LibationAvalonia/ViewModels/LiberateButtonStatus.cs
@@ -8,9 +8,10 @@ namespace LibationAvalonia.ViewModels
 {
 	public class LiberateButtonStatus : ViewModelBase, IComparable
 	{
-		public LiberateButtonStatus(bool isSeries)
+		public LiberateButtonStatus(bool isSeries, bool isAbsent)
 		{
 			IsSeries = isSeries;
+			IsAbsent = isAbsent;
 		}
 		public LiberatedStatus BookStatus { get; set; }
 		public LiberatedStatus? PdfStatus { get; set; }
@@ -26,7 +27,10 @@ namespace LibationAvalonia.ViewModels
 				this.RaisePropertyChanged(nameof(ToolTip));
 			}
 		}
-		private bool IsSeries { get; }
+
+		private bool IsAbsent { get; }
+		public bool IsSeries { get; }
+		public bool IsUnavailable => !IsSeries & IsAbsent & (BookStatus is not LiberatedStatus.Liberated || PdfStatus is not null and not LiberatedStatus.Liberated);
 		public Bitmap Image => GetLiberateIcon();
 		public string ToolTip => GetTooltip();
 
@@ -40,6 +44,8 @@ namespace LibationAvalonia.ViewModels
 			if (IsSeries && !second.IsSeries) return -1;
 			else if (!IsSeries && second.IsSeries) return 1;
 			else if (IsSeries && second.IsSeries) return 0;
+			else if (IsUnavailable && !second.IsUnavailable) return 1;
+			else if (!IsUnavailable && second.IsUnavailable) return -1;
 			else if (BookStatus == LiberatedStatus.Liberated && second.BookStatus != LiberatedStatus.Liberated) return -1;
 			else if (BookStatus != LiberatedStatus.Liberated && second.BookStatus == LiberatedStatus.Liberated) return 1;
 			else return BookStatus.CompareTo(second.BookStatus);
@@ -72,11 +78,15 @@ namespace LibationAvalonia.ViewModels
 
 			return GetFromResources($"liberate_{image_lib}{image_pdf}");
 		}
+
 		private string GetTooltip()
 		{
 			if (IsSeries)
 				return Expanded ? "Click to Collpase" : "Click to Expand";
 
+			if (IsUnavailable)
+				return "This book cannot be downloaded\nbecause it wasn't found during\nthe most recent library scan";
+
 			if (BookStatus == LiberatedStatus.Error)
 				return "Book downloaded ERROR";
 
diff --git a/Source/LibationAvalonia/ViewModels/LibraryBookEntry.cs b/Source/LibationAvalonia/ViewModels/LibraryBookEntry.cs
index 8b823191..20ac780f 100644
--- a/Source/LibationAvalonia/ViewModels/LibraryBookEntry.cs
+++ b/Source/LibationAvalonia/ViewModels/LibraryBookEntry.cs
@@ -44,13 +44,12 @@ namespace LibationAvalonia.ViewModels
 					_pdfStatus = LibraryCommands.Pdf_Status(LibraryBook.Book);
 					lastStatusUpdate = DateTime.Now;
 				}
-				return new LiberateButtonStatus(IsSeries) { BookStatus = _bookStatus, PdfStatus = _pdfStatus };
+				return new LiberateButtonStatus(isSeries: false, LibraryBook.AbsentFromLastScan) { BookStatus = _bookStatus, PdfStatus = _pdfStatus };
 			}
 		}
 
 		public override BookTags BookTags => new() { Tags = string.Join("\r\n", Book.UserDefinedItem.TagsEnumerated) };
 
-		public override bool IsSeries => false;
 		public override bool IsEpisode => Parent is not null;
 		public override bool IsBook => Parent is null;
 
@@ -93,6 +92,7 @@ namespace LibationAvalonia.ViewModels
 			SeriesIndex = Book.SeriesLink.FirstOrDefault()?.Index ?? 0;
 
 			this.RaisePropertyChanged(nameof(MyRating));
+			this.RaisePropertyChanged(nameof(Liberate));
 			UserDefinedItem.ItemChanged += UserDefinedItem_ItemChanged;
 		}
 
diff --git a/Source/LibationAvalonia/ViewModels/SeriesEntry.cs b/Source/LibationAvalonia/ViewModels/SeriesEntry.cs
index 88d23d2f..5fe5464d 100644
--- a/Source/LibationAvalonia/ViewModels/SeriesEntry.cs
+++ b/Source/LibationAvalonia/ViewModels/SeriesEntry.cs
@@ -46,7 +46,6 @@ namespace LibationAvalonia.ViewModels
 		public override LiberateButtonStatus Liberate { get; }
 		public override BookTags BookTags { get; } = new();
 
-		public override bool IsSeries => true;
 		public override bool IsEpisode => false;
 		public override bool IsBook => false;
 
@@ -54,7 +53,7 @@ namespace LibationAvalonia.ViewModels
 
 		public SeriesEntry(LibraryBook parent, IEnumerable<LibraryBook> children)
 		{
-			Liberate = new LiberateButtonStatus(IsSeries);
+			Liberate = new LiberateButtonStatus(isSeries: true, isAbsent: false);
 			SeriesIndex = -1;
 
 			Children = children
diff --git a/Source/LibationAvalonia/Views/MainWindow.VisibleBooks.cs b/Source/LibationAvalonia/Views/MainWindow.VisibleBooks.cs
index c237f9f2..492635db 100644
--- a/Source/LibationAvalonia/Views/MainWindow.VisibleBooks.cs
+++ b/Source/LibationAvalonia/Views/MainWindow.VisibleBooks.cs
@@ -157,6 +157,7 @@ namespace LibationAvalonia.Views
 			=> _viewModel.VisibleNotLiberated
 				= _viewModel.ProductsDisplay
 				.GetVisibleBookEntries()
+				.Where(lb => !lb.AbsentFromLastScan)
 				.Count(lb => lb.Book.UserDefinedItem.BookStatus == LiberatedStatus.NotLiberated);
 	}
 }
diff --git a/Source/LibationAvalonia/Views/ProductsDisplay.axaml b/Source/LibationAvalonia/Views/ProductsDisplay.axaml
index 507a225d..20e2f00e 100644
--- a/Source/LibationAvalonia/Views/ProductsDisplay.axaml
+++ b/Source/LibationAvalonia/Views/ProductsDisplay.axaml
@@ -61,9 +61,13 @@
 				<controls:DataGridTemplateColumnExt CanUserSort="True" Width="75" Header="Liberate" SortMemberPath="Liberate" ClipboardContentBinding="{Binding Liberate.ToolTip}">
 					<DataGridTemplateColumn.CellTemplate>
 						<DataTemplate>
-							<Button Opacity="{Binding Opacity}" Padding="0" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Click="LiberateButton_Click" ToolTip.Tip="{Binding Liberate.ToolTip}">
-								<Image Source="{Binding Liberate.Image}" Stretch="None" />
-							</Button>
+							<Panel ToolTip.Tip="{Binding Liberate.ToolTip}">
+								<Button Opacity="{Binding Opacity}" Padding="0" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Click="LiberateButton_Click" IsVisible="{Binding !Liberate.IsUnavailable}">
+									<Image Source="{Binding Liberate.Image}" Stretch="None" />
+								</Button>
+								<Image Source="{Binding Liberate.Image}" Stretch="None" IsVisible="{Binding Liberate.IsUnavailable}"/>
+								<Panel Background="{StaticResource DisabledGrayBrush}" IsVisible="{Binding Liberate.IsUnavailable}" />
+							</Panel>
 						</DataTemplate>
 					</DataGridTemplateColumn.CellTemplate>
 				</controls:DataGridTemplateColumnExt>
diff --git a/Source/LibationAvalonia/Views/ProductsDisplay.axaml.cs b/Source/LibationAvalonia/Views/ProductsDisplay.axaml.cs
index 7997f7c7..3c2c0493 100644
--- a/Source/LibationAvalonia/Views/ProductsDisplay.axaml.cs
+++ b/Source/LibationAvalonia/Views/ProductsDisplay.axaml.cs
@@ -34,7 +34,7 @@ namespace LibationAvalonia.Views
 				List<LibraryBook> sampleEntries = new()
 				{
 					//context.GetLibraryBook_Flat_NoTracking("B00DCD0OXU"),
-					context.GetLibraryBook_Flat_NoTracking("B017V4IM1G"),
+					context.GetLibraryBook_Flat_NoTracking("B002V8H7G4"),
 					context.GetLibraryBook_Flat_NoTracking("B017V4IWVG"),
 					context.GetLibraryBook_Flat_NoTracking("B017V4JA2Q"),
 					context.GetLibraryBook_Flat_NoTracking("B017V4NUPO"),
@@ -84,7 +84,7 @@ namespace LibationAvalonia.Views
 			{
 				var entry = args.GridEntry;
 
-                if (entry.IsSeries)
+                if (entry.Liberate.IsSeries)
 					return;
 
                 var setDownloadMenuItem = new MenuItem()
@@ -135,7 +135,7 @@ namespace LibationAvalonia.Views
 				var convertToMp3MenuItem = new MenuItem
 				{
 					Header = "_Convert to Mp3",
-					IsEnabled = entry.Book.UserDefinedItem.BookStatus != LiberatedStatus.NotLiberated
+					IsEnabled = entry.Book.UserDefinedItem.BookStatus is LiberatedStatus.Liberated 
 				};
 				convertToMp3MenuItem.Click += (_, _) => ConvertToMp3Clicked?.Invoke(this, entry.LibraryBook);
 
diff --git a/Source/LibationWinForms/Form1.VisibleBooks.cs b/Source/LibationWinForms/Form1.VisibleBooks.cs
index 2ecd336b..a77c821d 100644
--- a/Source/LibationWinForms/Form1.VisibleBooks.cs
+++ b/Source/LibationWinForms/Form1.VisibleBooks.cs
@@ -27,7 +27,7 @@ namespace LibationWinForms
 			=> await Task.Run(setLiberatedVisibleMenuItem);
 		void setLiberatedVisibleMenuItem()
 		{
-			var notLiberated = productsDisplay.GetVisible().Count(lb => lb.Book.UserDefinedItem.BookStatus == DataLayer.LiberatedStatus.NotLiberated);
+			var notLiberated = productsDisplay.GetVisible().Count(lb => lb.Book.UserDefinedItem.BookStatus == LiberatedStatus.NotLiberated && !lb.AbsentFromLastScan);
 			this.UIThreadSync(() =>
 			{
 				if (notLiberated > 0)
diff --git a/Source/LibationWinForms/GridView/LiberateButtonStatus.cs b/Source/LibationWinForms/GridView/LiberateButtonStatus.cs
index 21c207d0..80808b12 100644
--- a/Source/LibationWinForms/GridView/LiberateButtonStatus.cs
+++ b/Source/LibationWinForms/GridView/LiberateButtonStatus.cs
@@ -8,7 +8,15 @@ namespace LibationWinForms.GridView
 		public LiberatedStatus BookStatus { get; set; }
 		public LiberatedStatus? PdfStatus { get; set; }
 		public bool Expanded { get; set; }
-		public bool IsSeries { get; init; }
+		public bool IsSeries { get; }
+		private bool IsAbsent { get; }
+		public bool IsUnavailable => !IsSeries & IsAbsent & (BookStatus is not LiberatedStatus.Liberated || PdfStatus is not null and not LiberatedStatus.Liberated);
+
+		public LiberateButtonStatus(bool isSeries, bool isAbsent)
+		{
+			IsSeries = isSeries;
+			IsAbsent = isAbsent;
+		}
 
 		/// <summary>
 		/// Defines the Liberate column's sorting behavior
@@ -20,6 +28,8 @@ namespace LibationWinForms.GridView
 			if (IsSeries && !second.IsSeries) return -1;
 			else if (!IsSeries && second.IsSeries) return 1;
 			else if (IsSeries && second.IsSeries) return 0;
+			else if (IsUnavailable && !second.IsUnavailable) return 1;
+			else if (!IsUnavailable && second.IsUnavailable) return -1;
 			else if (BookStatus == LiberatedStatus.Liberated && second.BookStatus != LiberatedStatus.Liberated) return -1;
 			else if (BookStatus != LiberatedStatus.Liberated && second.BookStatus == LiberatedStatus.Liberated) return 1;
 			else return BookStatus.CompareTo(second.BookStatus);
diff --git a/Source/LibationWinForms/GridView/LiberateDataGridViewImageButtonColumn.cs b/Source/LibationWinForms/GridView/LiberateDataGridViewImageButtonColumn.cs
index 5d0a2d10..a588610a 100644
--- a/Source/LibationWinForms/GridView/LiberateDataGridViewImageButtonColumn.cs
+++ b/Source/LibationWinForms/GridView/LiberateDataGridViewImageButtonColumn.cs
@@ -17,11 +17,14 @@ namespace LibationWinForms.GridView
 	internal class LiberateDataGridViewImageButtonCell : DataGridViewImageButtonCell
 	{
 		private static readonly Color SERIES_BG_COLOR = Color.FromArgb(230, 255, 230);
+		private static readonly Brush DISABLED_GRAY = new SolidBrush(Color.FromArgb(0x60, Color.LightGray));
 		protected override void Paint(Graphics graphics, Rectangle clipBounds, Rectangle cellBounds, int rowIndex, DataGridViewElementStates elementState, object value, object formattedValue, string errorText, DataGridViewCellStyle cellStyle, DataGridViewAdvancedBorderStyle advancedBorderStyle, DataGridViewPaintParts paintParts)
 		{
 			if (value is LiberateButtonStatus status)
 			{
-				if (status.BookStatus is LiberatedStatus.Error)
+
+				if (status.BookStatus is LiberatedStatus.Error || status.IsUnavailable)
+					//Don't paint the button graphic
 					paintParts ^= DataGridViewPaintParts.ContentBackground | DataGridViewPaintParts.ContentForeground | DataGridViewPaintParts.SelectionBackground;
 
 				if (rowIndex >= 0 && DataGridView.GetBoundItem<GridEntry>(rowIndex) is LibraryBookEntry lbEntry && lbEntry.Parent is not null)
@@ -41,7 +44,14 @@ namespace LibationWinForms.GridView
 
 					DrawButtonImage(graphics, buttonImage, cellBounds);
 
-					ToolTipText = mouseoverText;
+					if (status.IsUnavailable)
+					{
+						//Create the "disabled" look by painting a transparent gray box over the buttom image.
+						graphics.FillRectangle(DISABLED_GRAY, cellBounds);
+						ToolTipText = "This book cannot be downloaded\r\nbecause it wasn't found during\r\nthe most recent library scan";
+					}
+					else
+						ToolTipText = mouseoverText;
 				}
 			}
 		}
diff --git a/Source/LibationWinForms/GridView/LibraryBookEntry.cs b/Source/LibationWinForms/GridView/LibraryBookEntry.cs
index a29320c7..c0da5654 100644
--- a/Source/LibationWinForms/GridView/LibraryBookEntry.cs
+++ b/Source/LibationWinForms/GridView/LibraryBookEntry.cs
@@ -52,7 +52,7 @@ namespace LibationWinForms.GridView
 					_pdfStatus = LibraryCommands.Pdf_Status(LibraryBook.Book);
 					lastStatusUpdate = DateTime.Now;
 				}
-				return new LiberateButtonStatus { BookStatus = _bookStatus, PdfStatus = _pdfStatus, IsSeries = false };
+				return new LiberateButtonStatus(isSeries: false, LibraryBook.AbsentFromLastScan) { BookStatus = _bookStatus, PdfStatus = _pdfStatus };
 			}
 		}
 		public override string DisplayTags => string.Join("\r\n", Book.UserDefinedItem.TagsEnumerated);
diff --git a/Source/LibationWinForms/GridView/ProductsDisplay.cs b/Source/LibationWinForms/GridView/ProductsDisplay.cs
index 411c516c..1db74b56 100644
--- a/Source/LibationWinForms/GridView/ProductsDisplay.cs
+++ b/Source/LibationWinForms/GridView/ProductsDisplay.cs
@@ -200,7 +200,8 @@ namespace LibationWinForms.GridView
 
 		private void productsGrid_LiberateClicked(LibraryBookEntry liveGridEntry)
 		{
-			if (liveGridEntry.LibraryBook.Book.UserDefinedItem.BookStatus is not LiberatedStatus.Error)
+			if (liveGridEntry.LibraryBook.Book.UserDefinedItem.BookStatus is not LiberatedStatus.Error
+				&& !liveGridEntry.Liberate.IsUnavailable)
 				LiberateClicked?.Invoke(this, liveGridEntry.LibraryBook);
 		}
 
diff --git a/Source/LibationWinForms/GridView/ProductsGrid.cs b/Source/LibationWinForms/GridView/ProductsGrid.cs
index ec5e0cac..a5376b56 100644
--- a/Source/LibationWinForms/GridView/ProductsGrid.cs
+++ b/Source/LibationWinForms/GridView/ProductsGrid.cs
@@ -180,7 +180,7 @@ namespace LibationWinForms.GridView
 			var convertToMp3MenuItem = new ToolStripMenuItem
 			{
 				Text = "&Convert to Mp3",
-				Enabled = entry.Book.UserDefinedItem.BookStatus != LiberatedStatus.NotLiberated
+				Enabled = entry.Book.UserDefinedItem.BookStatus is LiberatedStatus.Liberated
 			};
 			convertToMp3MenuItem.Click += (_, e) => ConvertToMp3Clicked?.Invoke(entry as LibraryBookEntry);
 
diff --git a/Source/LibationWinForms/GridView/SeriesEntry.cs b/Source/LibationWinForms/GridView/SeriesEntry.cs
index cf99c96b..5cb9b55e 100644
--- a/Source/LibationWinForms/GridView/SeriesEntry.cs
+++ b/Source/LibationWinForms/GridView/SeriesEntry.cs
@@ -62,7 +62,7 @@ namespace LibationWinForms.GridView
 
 		private SeriesEntry(LibraryBook parent)
 		{
-			Liberate = new LiberateButtonStatus { IsSeries = true };
+			Liberate = new LiberateButtonStatus(isSeries: true, isAbsent: false);
 			SeriesIndex = -1;
 			LibraryBook = parent;
 			LoadCover();