This looks fascination, like the work Robin Derosa has done to have students participate in the research and textbook creation process. Will they be credited as contributors? Will you be sharing your process, approach?
I like seeing the use of many historical images, e.g scanning the chapter on the Great War:
and wondering if these are mostly public domain (I saw two with sources credited). My personal preference with public domain is to credit the source, although by the fine print of the license you do not have too, as it can be a pathway for a reader to pursue more related images.
But again, these projects involving students as content creators are really powerful examples.