Actually, I am Catholic and I frequent Catholic bookshops a lot. We must be a very self-interested group of people (LOL!), because I have never, ever seen a book that so much as mentioned Baptists, or any other religion! There are boatloads of books on catechism, apologetics, Mary, the Saints, Holy Communion, the Pope, the rosary, baptism, scapulars, etc., IOW all the bells and whistles pertaining to our faith.
In our library in our parish, we additionally do have a small section containing books (it appeared after 9/11, when people’s curiosity about islam got piqued) such as “world religions for dummies” type books which give a brief overview of what other faiths believe, but I have never even opened one of them, so I have to admit that I have no idea what is presented in them. However, these books are not “Catholic” books, they are secular books that would readily be found (and I have seen them) in a Borders or Barnes and Noble in the Religion section, so if there is anything derogatory in them, it is probably against Catholics anyway!