Yarn, and hooks to go with that particular yarn. For instance, "super bulky" is a specific term for a kind of yarn that needs either an 8mm, 9mm, or 10mm hook. If you are unsure, please message me, or join me for one of my crochet classes!

Crochet hook buying guide:

Crochet hooks generally go with the size of the yarn. The most common is called "worsted weight" and generally takes a J through L hook (5-6mm). Beginners usually find it easier to work with bigger hooks. Other sizes of yarn such as "bulky" and "super bulky" can use hooks M through Q (10mm), and can even be finger crocheted. I have always bought Boyd brand hooks, but I recently came across a set on Amazon that had a bunch of extras with it and the hooks were decent, and abundant for the price. I love going to the craft store and grabbing a bag of mill ends for yarn. You usually get a variety to experiment with.

Learners will not need to use any apps or websites beyond the standard Outschool tools.