Text Book AP CSP

This is my first time teaching a computer science course. The text book listed in curriculum is Blow to Bits. How have others assigned reading? I don’t see any activities in curriculum directly related to the text.
Thanks

@jwhetzel Blown to Bits is an optional resource that some educators choose to use with their students. You can find suggestions for applicable chapters in the Extended Learning sections of selected lessons.

For example, this is from Unit 2: Lesson 4 Encoding Color Images:
https://curriculum.code.org/csp-18/unit2/4/