This book, titled "Serious Programming On The Psion Series 3a" by Bill Aitken, published by Kuma Books, is an essential guide for those interested in programming on the Psion Series 3a. The book is specifically written for serious programmers and covers a wide range of topics from the basics to more advanced concepts.

Book needs flattening out.

The vintage book is in fair condition and will be a valuable addition to any programming enthusiast's collection. It includes detailed information on programming concepts, code examples, and tips for effective programming.