pocketbook
noun
[ ˈpɒkɪtbʊk ]
• a notebook.
• "a record of the caution shall be made in the officer's pocketbook"
• a wallet, purse, or handbag.
• "she dug a couple of aspirin out of her pocketbook"
• a paperback or other small or cheap edition of a book.
• "student doctors clutch pocket books of clinical practice"