There's a biography out about the cartoonist who gave us Krazy Kat. It's called Krazy: George Herriman, a Life in Black and White and it's by Michael Tisserand
I haven't read it yet but you can do what I did, which was to order a copy of it here. Here's an article about the book.
I love Krazy Kat. My five favorite newspaper strips of all time would be — in no particular order — Peanuts, Pogo, Thimble Theater (aka Popeye by Segar), Li'l Abner (before about 1964) and Krazy Kat. This is not to say I completely understood Krazy Kat but I love as much of it as I've been able to understand. Maybe this book will help me understand its creator and that will translate into understanding more of the strip. Worth a try.