Title: Design Your Own Crochet Projects: Magic Formulas for Creating Custom Scarves, Cowls, Hats, Socks, Mittens & Gloves
Author: Sara Delaney
Publisher / Year: Storey Publishing, October 31, 2017 
Pages / Format: 256 pages, spiral bound (with fill-in templates)
Description:
Are you tired of following patterns that nearly—but not quite—fit? With Design Your Own Crochet Projects, Sara Delaney provides a thoughtful, formula-based method for designing your own wearable accessories—no more guesswork.
Delaney’s approach is laid out in a clear, friendly style and includes:
 
Flexible “magic formulas” and fill-in-the-blank templates you can use to tailor patterns (scarves, cowls, hats, mitts, gloves, socks) to your preferred yarn and stitch pattern. 
18 original sample patterns created by Delaney, demonstrating how the formulas are applied in real designs. 
Help with swatching, gauge, and measurement, teaching you how to translate yarn behaviour and stitch geometry into numbers you can use in your formulas.
Guidance on different construction options (for example, varying how we shape hats, gloves, or socks) to let you choose what works best for your design vision.
A stitch dictionary with photo tutorials, abbreviations, and visual references to support the designs and help you pick the right stitch motifs. 
 
Delaney’s book is especially useful for crocheters who already have some experience and are ready to move from pattern-following to pattern-creating. It offers logical structure and tools so you can confidently design accessories that fit you—and use the yarn and stitches you love.