I use this book constantly when designing new fair isle garments
200 Fair Isle Motifs: A Knitter's Directory
This is a fantastic reference with patterns that will help you understand why top down sweaters are constructed the way they are
Knitter's Handy Book of Top-Down Sweaters
Another great reference for colourwork motifs. Jamie's doodle motifs are much more playful than traditional colourwork
Doodle Knit Directory: 200 Motifs & Patterns
This book is full of fantastic and colourful sock patterns! Charlotte writes lovely, easy to follow patterns
Charming Colorwork Socks: 25 Knitting Patterns
A second book from Charlotte Stone, just as fantastic as the first!
Joyful Colorwork Socks: 25 Fun Knitting Patterns
If you love cables and lace, this book will really tickle your brain. There are a few patterns included, but mostly many many motifs you can incorporate into your designs
Japanese Knitting Stitch Bible: 260 Patterns
I love the variety of sock patterns in this book, it's sure to keep you engaged with your knitting
52 Weeks of Socks: Year-Round Knitting
Of course, another volume of socks from Laine!
52 Weeks of Socks, Vol. II: Year-round Knitting
Another fantastic book from Laine, full of various accessories that you'll love creating
