Quarry Books-Creative Publishing International: 30 Blankets. The granny square is the perfect foundation for countless projects and is unparalleled for its portability, versatility and endless variety. Using only ten granny squares this book shows you how you can crochet thirty completely different blankets. Each square is used three times with different yarns, color schemes, motif arrangements and edge finishes. Author: Margaret Hubert. Softcover, 128 pages. Published Year: 2016. ISBN 978-1-58923-893-0. Imported.