"Moving to Linux: Kiss the Blue Screen of Death Goodbye!" was my second book, and a huge hit. It went on to inspire another four "Moving to" books.
From the book description:
This book is a user guide for the Linux desktop, specifically geared toward the KDE desktop, and covering the most popular desktop tools. It covers getting on the Internet, e-mail, Web browsers, office applications (word processors, spreadsheets, presentations — primarily the OpenOffice.org suite), playing and ripping songs, burning CDs, watching movies, playing games, and so on. The author provides the perfect way to really check out and get under the hood of Linux by including a special bootable Linux CD (Knoppix) — not one you install from, but rather one you can just boot and run without reinstalling.
You can get a copy from Amazon, Chapters-Indigo, and various other retailers.