Although I have not owned a Bull Terrier [THE Greatest breed ever

] in 12 years

, I still have my quite nice BT book collection (~50 books).
Highlighted by a Derrydale, although most Derrydale collectors put Briggs' book at the lower end of rarity/collectability:
btb1.jpg
Also a favorite of mine, is the quite politically incorrectly titled Hogarth genetics book. It's filled with many/most "colored" BT pedigrees of the early 1900's. I love pedigrees and color coat genetics, and this has it all. Although his main color genetic conclusion is incorrect: Red x Black = Brindle. Actually what was seen as Black were Blacks carrying Brindle underneath. The when crossed with a Red, the Black was removed to reveal the Brindle (that's very elementary explanation, it gets very complicated).
btb2.jpg
Funny (sad) thing is the values of these books have dropped significantly from when I bought them. In the "old" days you had to hunt old book stores or go to dog shows to pick them up. Today with ebay, amazon, and abe, the are more readily available.