rec.arts.books   rec.arts.books@googlegroups.com
Books of all genres, and the publishing industry.
Language: English
62238 subscribers, Messages per month: 122, Usenet

rec.arts.books.marketplace   rec.arts.books.marketplace@googlegroups.com
Buying and selling of books.
Language: English
22497 subscribers, Messages per month: 41, Usenet

rec.arts.books.tolkien   rec.arts.books.tolkien@googlegroups.com
The works of J.R.R. Tolkien.
Language: English
18769 subscribers, Messages per month: 49, Usenet

rec.arts.books.childrens   rec.arts.books.childrens@googlegroups.com
All aspects of children's literature.
Language: English
17307 subscribers, Messages per month: 21, Usenet

rec.arts.books.hist-fiction   rec.arts.books.hist-fiction@googlegroups.com
Historical fictions (novels) in general.
Language: English
5604 subscribers, Messages per month: 1, Usenet

alt.books   alt.books@googlegroups.com
Use rec.arts.books.* or alt.books.* instead.
Language: English
15943 subscribers, Messages per month: 26, Usenet