I read this book and it is very interesting. Another book with a similar title and a common co-author is the famous SICP (Structure and Interpretation of Computer Programs). This book on classical mechanics is unique from several points of view. For one, it writes the Euler equations of a variational problem in a rigorous way (the notation in classical mechanics books can be quite confusing at first). Second, the treatment of chaos is very thorough, complete with computer programs (in Scheme) to produce plots. Highly recommended!