No matter how many patterns you’ve read, writing them is a totally different game. Formatting and writing clearly enough for other people to understand you can be an art in and of itself. These guides should help you find your way through the task.
The Beginner’s Guide to Writing Knitting Patterns: learn to write patterns others can knit, by Kate Atherley
This book is the most comprehensive guide to creating knitting patterns I have seen. It is over 100 pages of complete notes and tips on how to make patterns of any kind. It even includes steps for how to sell patterns online. It covers pattern writing from start to finish, only requiring you to know how to make your own items.
◇─◇──◇────◇────◇────◇────◇────◇─────◇──◇─◇
Chart Minder https://chart-minder.com/
Chart Minder is my favorite chart making tool. It will help you create your grids and work through the notation so that you don’t have to do any of it by hand.
◇─◇──◇────◇────◇────◇────◇────◇─────◇──◇─◇
How to Write a Crochet Pattern | What to Include. A Crafty Concept https://www.acraftyconcept.com/how-to-write-a-crochet-pattern-what-to-include/
This guide is formatted in a very clear way to show what goes into a crochet pattern. It even links to other, related resources to help you through any problem that comes up.
◇─◇──◇────◇────◇────◇────◇────◇─────◇──◇─◇
Knitting 101: how to create a pattern (or how I write mine) https://www.arohaknits.com/journal/2015/7/18/knitting-101-how-to-write-a-pattern-or-how-i-write-mine
This guide is, perhaps, where a knitter should start when writing patterns. It covers all of the basics and clearly lays out the anatomy of a pattern. The only thing it requires of you is to be familiar with how to read patterns.
Knitting And Crochet Research Guide 