A superb work, marked by the same ease of reading and in-depth explanation that characterized his work in his book about Frontier. He is quite candid about Realbasic's strengths and limitations; he gets right to the point in explaining how to do things (especially more esoteric tricks like handling sockets and apple events). realBASIC is a good IDE, but it's also filled with lots of "not-quite-documented" features (a simple example: programmatically changing tab panels by setting a property). This book is a treasure trove of tips and tricks in addition to being a definitive work. His analysis of realBASIC's strengths and limitations with respect to Apple Event Handling (the reason I purchased the book) proves that he is not only an excellent technical writer, but an even-handed one as well. I hate to use a cliche, but "if you use realBASIC, you need to have this book".