It is hard to find books on the internet with felted illustrations, and even harder to find in stores.
There are not enough felted illustration books out there!
Very few I have found. But what ones I have, I feel inspired to pursue my passion to create felted illustrations for books! (and very inspired to buy them all!)
The latest discovery is Cosy Classics, a few classic stories illustrated with felt! (I have bought Pride and Prejudice)