What is another word for paper-back book?
Pronunciation: [pˈe͡ɪpəbˈak bˈʊk] (IPA) 
A paper-back book refers to a book with a cover made of thick paper or card. The term "paper-back book" is often interchangeably used with other synonyms like softcover, paperback, trade paperback, pocketbook, and mass-market paperback. Softcover and paperback refer to books with a paper or card cover that is not rigid like a hardcover book. Trade paperback is a larger format softcover book that is usually used for non-fiction and academic titles. Pocketbook, on the other hand, is a smaller format paperback book that can fit in a pocket. Mass-market paperback, on the other hand, is a type of pocketbook that is often used for popular fiction and sold in large quantities.
