The Endocrine and Reproductive Systems has a retro Schoolhouse Rock feel to it, despite being published as part of World Book's Building Blocks of Science series in 2013. It is not a particularly engaging book, and I feel like I've missed something important about it.
Are these screenshots from an animated series? That would explain a lot, but I can't find anything showing this is the case. Why have 1970's-styled crayon drawings in a relatively recent publication?
Overall the book was informative and interesting, just very unusual and way too basic to provide enough information to give the reader any useful knowledge.
Can' rate, as I'm very much not in the target audience. I am reading nonfiction graphic novels for the Children's Books group, and I chose this because, as it happens, I know almost nothing about the endocrine system. Unfortunately, even after reading this, I still feel so uninformed that I'll have to find another very easy resource to introduce me to the concepts. Fortunately, some books and websites are listed in the book.
Also, tbh, I'm not sure what the audience is. Though there is a glossary of terms, and the book is focused on teaching them, it still seems challenging enough for middle grades. The format and cartoons make it look like a picture-book for tots. Home-schooling parents, or tutors, or students themselves, will want to decide for themselves... I'd say that maybe some as 6 might be interested, with support, but I just don't know.
I'd really like to know what you think of any of the Building Blocks of Science and Building Blocks of Math books. They seem like a good resource, and our little town library has a bunch. Let me know!