Sadly, I have not owned a Bull Terrier in over ten years, maybe this spring !!!
Back when I was into them, I collected BT books, which there are many (I have almost 50, missing a few key ones). There were (and are) a lot of wealthy people in the breed, who either had publication connections or vanity pressed themselves:
Glyn was early breeder of Colored * BTs in the '40's. However he was a bit a a maverick and not on the "accepted" list of English breeders.
Montgomery was an American, 6'6", 350 pounds of himself.
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"We" do have a Derrydale., which is cool, but at the lower end of DD collectors overall.
He's Jake, The Submarine Dog is really a kid's book, not much of a breed book. But it is considered important not only being written by Eisenhower's buddy, Hazlett, but illustrated by Paul Brown.
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* Colored, may not be so politically correct, but it is the correct terminology.

---- This is a very tough book, and probably my favorite.
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Also had (have) an interest in Pit Bull books, mainly the pedigree one's. I would find it hard to believe that any other breed has so much interest and publication of pedigrees. This is one of many:
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Fun stuff, Scott