Booksellerish

Having the characteristics, manner, or qualities typical of a bookseller or the book-selling profession; resembling bookseller behavior or style.

From 'bookseller' (book + seller, Old English 'sellan', to give or hand over) + '-ish' (Old English '-isc', a suffix meaning resembling or characteristic of). This adjective emerged in the 19th century to describe the distinctive culture of booksellers.