When asked to review the new edition of Marc Delisle's book Mastering phpMyAdmin 3.3.X for Effective MySQL Management, I said yes, as I already liked one of the previous editions a lot. Again I was surprised, how good the book is.
In addition to some rewritten chapters and parts, completely new aspects of phpMyAdmin are introduced compared to the 3.1 edition. This includes complete new chapters covering the new data and structure syncronization, replication features and change tracking features of phpMyAdmin 3.3.
Even if you already own a previous edition of this book, you should consider buying the new edition, as it has been improved in many different aspects.