There are 15 words that start with 'books'.
| books | bookshop | bookshelf | 
| bookshops | bookstall | bookstand | 
| bookstore | bookseller | bookstalls | 
| bookstands | bookstores | booksellers | 
| bookselling | bookshelves | booksellings | 
Note: These 15 words that start with 'books' are found from the USA & Canada version of the tournament Scrabble word list.