Creating a gauge means, you count the number of stitches per inch and rows per inch that result from a specified yarn worked with a specified-size hook.
Crochet Hook Sizes & Chart - A Complete Guide
Crochet Hook Size Chart for Amigurumi: Absolutely Everything You Need to Know — Pocket Yarnlings — Pocket Yarnlings
Stitch Anatomy Part 2: How Hook Size Affects Gauge.
Ultimate Guide to Mastering Crochet Gauge - Pretty Darn Adorable
Understanding Crochet Hook Sizes
How To Read Crochet Patterns (Step By Step) - Easy Crochet Patterns
An explanation of gauge and why it matters for crochet - Dora Does
Crochet Hook Size Chart: Which Hook Should I Use? - Petals to Picots
Crochet Hook Sizes - Best Hooks, Types & Charts
What is « gauge » in crochet and how to use it for amigurumi - Octopus Crochet
Crochet Hook Sizes - Best Hooks, Types & Charts
How the size of your crochet hook can change your gauge - Making Gauge Samples
How to Crochet a Gauge Perfectly Every Time with These Hacks + Video Tutorial
How Crochet Hook Sizes influence your Project Gauge