How to design:
9 Heads by Nancy Riegelman – aka “The Bible” this book will show you how to draw like a fashion designer.
Pattern Cutting by Dennic Chunman Lo – most pattern cutting books focus on either 2D (flat pattern cutting) or 3D (draping) this book is a good attempt at how 2D and 3D interact to make patterns.
Metric Pattern Cutting by Winifred Aldrich – there are a number of books in this series focusing on different categories of pattern cutting such as womenswear, underwear etc. This is a 2D (flat pattern cutting book).
Pattern Magic by Tomoko Nakamichi – a series of books describing how to use creative orgami like techniques.
Draping: The Complete Course by Karolyn Kiisel – 3D pattern cutting.