V-Basics by Regina Moessmer

This pattern book contains one basic pattern for a simple, classic V-neck sweater. The detailed pattern describes the sweater in 11 yarn weights and 14 sizes! It's the universal basic book for top-down V-neck sweaters. Once you've mastered the principle, you can adapt the pattern as you wish. And the great thing about top-down sweaters is that you can try them on again and again while knitting, for example, to adjust the sleeve length.