Author: Chad Smith
This appeared in January, 2000.
This book is a complete reference manual for itcl, as well as covering OO design issues, etc. Covers fundamentals, as well as advanced topics such as overloading, code reuse, multiple inheritance, abstract base classes, performance issues. Also covers itk and the 56 iwidgets. This is a tutorial approach rather than an encyclopedic approach to covering the material.
Unfortunately, this book is now out-of-print. It can still be gotten from used book retailers, but at a premium cost.
This sucks. They told me that it was in between printings when I went to Chapters last week. (Sept 29 2002) --ro