You might also find the work of David I. Spivak (no relation to the _Calculus on Manifolds_ Spivak) helpful in this endeavor.
John Baez (who is distantly related to Joan Baez, if memory serves) has also written a lot of introductory category theory and applied category theory.
Oh thanks, I will take a look. I’ve read some of John Baez’s things but mostly on mathematical physics, which was my undergrad. I didn’t know he’d written on category theory.
I think he and Joan Baez are actually first cousins!
John Baez (who is distantly related to Joan Baez, if memory serves) has also written a lot of introductory category theory and applied category theory.