I shouldn't ever have to buy another sewing book. Ever. With my most recent purchase, everything I will ever need to know about sewing is already covered in somewhere my bookcase; most likely, in this book.
My newest sewing book is Professional Sewing Techniques for Designers (Cole and Czachor, 2009). (click the book to see ordering information from Amazon.com) I went to the bookstore at Philadelphia University to just look at the book. I didn't plan to actually buy it. Honest. The intended audience for this text is the design student who may not have a lot of sewing experience.The book tells students how to construct the garments after they've designed them – sort of a 500 page instruction sheet. The book goes from very basic information, such as how to layout pattern pieces on grain and sew a seam to more advanced techniques like how to make welt pockets and notched collars. The text is written from a designer's point of view, so the "why" of the techniques is addressed in addition to the "how". You learn why a lapped zipper might be a better design choice than a centered zipper in certain applications. This book is copiously illustrated! The features are shown in a variety of design sketches throughout the chapters. There are so many technical and fashion illustrations that the text isn't always on the same page as the illustration to which it refers and it's a little annoying to flip to page 132 to see an example of the gathered pocket described on page 122. While this book is written as a textbook for design students, home sewers can learn much by reading the highlighted "Important" notes and "Pattern Tips". The Pattern Tips provide drafting insights relevant to the topic. The Important Notes provide additional, sewing information to expand your skills. The end of each chapter has information on applying the techniques to difficult fabrics and criteria for critiquing your results.
This book, along with the books already in my sewing library, covers everything I always wanted to know about sewing and now, won't have to ask. I have the resources to design garments, draft the patterns for my designs, then sew them expertly. (hoo boy!) I don't need to buy another book until my skills match the level of books I already own. But, that doesn't mean I won't.