I like the book but the contents seem to go well beyond the prerequisites of category theory—-it’s almost 900 pages. I got the impression that the author was n

I like the book but the contents seem to go well beyond the prerequisites of category theory—-it’s almost 900 pages. I got the impression that the author was not simply attempting to connect high school math to category theory but was providing a broader survey of higher math. I interpreted the author’s remarks about the path to category theory as the inspiration for embarking on the project that has turned out to be a wide survey of higher math that might benefit young mathematicians.