One of the best books I've ever found in Mary Duffy's HOAX book. I believe it is out of print, but you can find it on Amazon. Feel free to use my affiliate link below, you'll help me stay in design school with your easy contribution!
Yes the book is a dated (it was written in the 80s) but it right on point, especially for fuller figures. I find this book to be an excellent reference! I used to check out this book from the library all the time. Mary Duffy was a former plus size model that created her own plus size modeling agency. She really knows her stuff. In her book she makes and argument for 4 basic body styles and nicknames them H, O, A, and X. For the H shape, she is a straight up and down body shape, with little waist definition. O is the typical apple shape, full on top and skinnier legs. An A lady is also called a pear shape, smaller on the top and full through the hips and legs. X is the hourglass shape a lot of women envy, full bust and full hips and small waist. No matter your body shape this book will help you look your best. I would really love to see this book updated and reprinted!