This book is excellent - gives very comprehensive yet clear instructions how to draw flats accurately and to industry standard using both the traditional method of drawing one half of the garment and tracing it through etc and using a similar process in Adobe Illustrator. Using this approach, your drawings should be that much more accurate and professional looking - helpful for gaining credibility and preventing misunderstandings when dealing with overseas factories (for garment production. Includes examples of main types of garments - useful reference to use as a starting point to develop own designs. Highly recommended.