The Delta Module 1 test is long and a bit scary to be completely honest. Not scary in terms of you might not know what is on it but scary because it is such a huge investment of time and money you are scared to fail.  When I took the test in December 2021, I wanted to be sure I only had to go through that experience once so, I made a study guide. The guide is a compilation of a bunch of mix and match materials that I put together, printed, filed in a binder, and studied for two months straight. I'm putting it here for anyone who is thinking of taking the test... I hope it helps you on your journey.

Also, here is a link to a shared Google folder that has all the past tests I could get my hands on. Good luck M1 takers!