This book is the best of the quality software series. Save yourself sometime and start with it and if you find it useful, go back to the previous 3 (I found them best in the following order 2,3,1). The chapter on managing requirements is one of best tools I have ever found for convincing management that we must get a handle on our processes. Be warned however, that none of these books are as readable as "The Secrets of Consulting" or "The Pyschology of Computer Programming." Which I view as Weinberg's best works.