If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, withing 24 hours on weekdays.
Customer service
All questions about your order, return and delivery must be sent to our customer service team by e-mail at yourstore@yourdomain.com
Sale & Press
If you are interested in selling our products, need more information about our brand or wish to make a collaboration, please contact us at press@yourdomain.com
Help
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, withing 24 hours on weekdays.
Customer service
All questions about your order, return and delivery must be sent to our customer service team by e-mail at yourstore@yourdomain.com
Sale & Press
If you are interested in selling our products, need more information about our brand or wish to make a collaboration, please contact us at press@yourdomain.com
Gather your crochet hook and some colorful yarn, and get ready to have fun with simple geometry. Designer Ruthie Marks explores 3 mathematical concepts to create more than 25 exquisite crochet designs: Dragon Curve designs include Luxury Scarf, Diamond Shawl, Craft Tote for All Reasons, Jute Doormat, Ruffles Afghan, and Labyrinth (wall hanging); Golden Ratio designs include Golden Scarf, Summer Wall Hanging, Star Afghan, Flower Power Pillow, Puzzle Placemats, and Garden Poncho; and Fibonacci Sequence designs include Scarlet Scarf, Striped Rug, Square Baskets, Afghans and Pillows, Circles Poncho, and Checkered Rug.
⚠️ WARNING (California Proposition 65):
This product may contain chemicals known to the State of California to cause cancer,
birth defects, or other reproductive harm.
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support@ergodebooks.com
⚠️ California Proposition 65 Warning: Some products sold on this website may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.