File Liberators should log their own progresss and not depend on controller or forms to do so. This means that LogMe will create duplicate log entries for non-form and non-controller calls but that's a refactor for a rainy day.

FileLiberator/ConvertToMp3.cs

@@ -14,7 +14,6 @@ namespace FileLiberator
 {
     public class ConvertToMp3 : IAudioDecodable
     {
-
         private Mp4File m4bBook;
 
 		public event EventHandler<TimeSpan> StreamingTimeRemaining;
@@ -30,7 +29,22 @@ namespace FileLiberator
 		public event EventHandler<string> StatusUpdate;
 		public event EventHandler<LibraryBook> Completed;
 
-        private long fileSize;
+        public ConvertToMp3()
+        {
+            RequestCoverArt += (o, e) => Serilog.Log.Logger.Debug("Event fired {@DebugInfo}", new { Name = nameof(RequestCoverArt) });
+            TitleDiscovered += (o, e) => Serilog.Log.Logger.Debug("Event fired {@DebugInfo}", new { Name = nameof(TitleDiscovered), Title = e });
+            AuthorsDiscovered += (o, e) => Serilog.Log.Logger.Debug("Event fired {@DebugInfo}", new { Name = nameof(AuthorsDiscovered), Authors = e });
+            NarratorsDiscovered += (o, e) => Serilog.Log.Logger.Debug("Event fired {@DebugInfo}", new { Name = nameof(NarratorsDiscovered), Narrators = e });
+            CoverImageDiscovered += (o, e) => Serilog.Log.Logger.Debug("Event fired {@DebugInfo}", new { Name = nameof(CoverImageDiscovered), CoverImageBytes = e?.Length });
+
+            StreamingBegin += (o, e) => Serilog.Log.Logger.Information("Event fired {@DebugInfo}", new { Name = nameof(StreamingBegin), Message = e });
+            StreamingCompleted += (o, e) => Serilog.Log.Logger.Information("Event fired {@DebugInfo}", new { Name = nameof(StreamingCompleted), Message = e });
+
+            Begin += (o, e) => Serilog.Log.Logger.Information("Event fired {@DebugInfo}", new { Name = nameof(Begin), Book = e.LogFriendly() });
+            Completed += (o, e) => Serilog.Log.Logger.Information("Event fired {@DebugInfo}", new { Name = nameof(Completed), Book = e.LogFriendly() });
+        }
+
+		private long fileSize;
 		private string Mp3FileName(string m4bPath) => m4bPath is null ? string.Empty : PathLib.ReplaceExtension(m4bPath, ".mp3");
 
         public void Cancel() => m4bBook?.Cancel();

FileLiberator/DownloadDecryptBook.cs

@@ -15,7 +15,6 @@ namespace FileLiberator
 {
     public class DownloadDecryptBook : IAudioDecodable
     {
-
         private AaxcDownloadConverter aaxcDownloader;
 
         public event EventHandler<TimeSpan> StreamingTimeRemaining;
@@ -31,6 +30,21 @@ namespace FileLiberator
         public event EventHandler<string> StatusUpdate;
         public event EventHandler<LibraryBook> Completed;
 
+        public DownloadDecryptBook()
+        {
+            RequestCoverArt += (o, e) => Serilog.Log.Logger.Debug("Event fired {@DebugInfo}", new { Name = nameof(RequestCoverArt) });
+            TitleDiscovered += (o, e) => Serilog.Log.Logger.Debug("Event fired {@DebugInfo}", new { Name = nameof(TitleDiscovered), Title = e });
+            AuthorsDiscovered += (o, e) => Serilog.Log.Logger.Debug("Event fired {@DebugInfo}", new { Name = nameof(AuthorsDiscovered), Authors = e });
+            NarratorsDiscovered += (o, e) => Serilog.Log.Logger.Debug("Event fired {@DebugInfo}", new { Name = nameof(NarratorsDiscovered), Narrators = e });
+            CoverImageDiscovered += (o, e) => Serilog.Log.Logger.Debug("Event fired {@DebugInfo}", new { Name = nameof(CoverImageDiscovered), CoverImageBytes = e?.Length });
+
+            StreamingBegin += (o, e) => Serilog.Log.Logger.Information("Event fired {@DebugInfo}", new { Name = nameof(StreamingBegin), Message = e });
+            StreamingCompleted += (o, e) => Serilog.Log.Logger.Information("Event fired {@DebugInfo}", new { Name = nameof(StreamingCompleted), Message = e });
+
+            Begin += (o, e) => Serilog.Log.Logger.Information("Event fired {@DebugInfo}", new { Name = nameof(Begin), Book = e.LogFriendly() });
+            Completed += (o, e) => Serilog.Log.Logger.Information("Event fired {@DebugInfo}", new { Name = nameof(Completed), Book = e.LogFriendly() });
+        }
+
         public async Task<StatusHandler> ProcessAsync(LibraryBook libraryBook)
         {
             Begin?.Invoke(this, libraryBook);

FileLiberator/DownloadFile.cs

@@ -13,6 +13,12 @@ namespace FileLiberator
 		public event EventHandler<string> StreamingCompleted;
 		public event EventHandler<TimeSpan> StreamingTimeRemaining;
 
+		public DownloadFile()
+		{
+			StreamingBegin += (o, e) => Serilog.Log.Logger.Information("Event fired {@DebugInfo}", new { Name = nameof(StreamingBegin), Message = e });
+			StreamingCompleted += (o, e) => Serilog.Log.Logger.Information("Event fired {@DebugInfo}", new { Name = nameof(StreamingCompleted), Message = e });
+		}
+
 		public async Task<string> PerformDownloadFileAsync(string downloadUrl, string proposedDownloadFilePath)
 		{
 			var client = new HttpClient();

FileLiberator/DownloadPdf.cs

@@ -17,6 +17,15 @@ namespace FileLiberator
 			=> !string.IsNullOrWhiteSpace(getdownloadUrl(libraryBook))
 			&& !libraryBook.Book.PDF_Exists;
 
+		public DownloadPdf()
+		{
+			StreamingBegin += (o, e) => Serilog.Log.Logger.Information("Event fired {@DebugInfo}", new { Name = nameof(StreamingBegin), Message = e });
+			StreamingCompleted += (o, e) => Serilog.Log.Logger.Information("Event fired {@DebugInfo}", new { Name = nameof(StreamingCompleted), Message = e });
+
+			Begin += (o, e) => Serilog.Log.Logger.Information("Event fired {@DebugInfo}", new { Name = nameof(Begin), Book = e.LogFriendly() });
+			Completed += (o, e) => Serilog.Log.Logger.Information("Event fired {@DebugInfo}", new { Name = nameof(Completed), Book = e.LogFriendly() });
+		}
+
 		public override async Task<StatusHandler> ProcessItemAsync(LibraryBook libraryBook)
 		{
 			var proposedDownloadFilePath = getProposedDownloadFilePath(libraryBook);

FileLiberator/LoggerUtilities.cs

@@ -0,0 +1,23 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Runtime.CompilerServices;
+using System.Text;
+using System.Threading.Tasks;
+using DataLayer;
+using Dinah.Core;
+using Dinah.Core.ErrorHandling;
+
+namespace FileLiberator
+{
+	public static class LoggerUtilities
+	{
+		public static (string id, string title, string locale, string account) LogFriendly(this LibraryBook libraryBook)
+			=> (
+			id: libraryBook.Book.AudibleProductId,
+			title: libraryBook.Book.Title,
+			locale: libraryBook.Book.Locale,
+			account: libraryBook.Account.ToMask()
+			);
+	}
+}