You can download it and size it up here:

https://issacharinitiative.org/cfz-curriculum/

You get individual participant guides, leader material, and videos. And the whole thing is free! Introduce them to the idea of unengaged groups. The material is top-notch and it’s really not promoting any one organization over another. If you decide you want to order “real” books, you can easily pick those up the leader’s guide for $25 at…

https://www.cokesbury.com/product/9781940203126/count-for-zero-dvdbased-study/?rank=0&txtSearchQuery=count+for+zero

and the study/participant’s guide at for $9…

https://www.cokesbury.com/product/9781940203140/count-for-zero-participants-guide/?rank=1&txtSearchQuery=count+for+zero

We ordered a copy of this guide just to see what it was like. The cover is full color and attractive. The inside is black and white, about 100 pages, and is well done. Some of the print (e.g., in the lists) is fairly small and hard to read, in our opinion, but over all, this book would make a great study for any level person in any literate level of society.