I'm not sure if his web site is well known but Richard Stratton certainly write some excellent books on the breed. His web site has some good articles too, I had not looked at it recently.

Here's a link to what he wrote on his introduction to the bulldog breed --

https://strattonpitbull.com/2019/12/early-influences/

And his last book on pit bulls is The Bulldog Edition which is not well known since it is self published, here is a link for it on Lulu the publisher's site --

https://www.lulu.com/shop/richard-st...-18kkpyr8.html