Eyal, Nir, Hooked : how to build habit-forming products / Nir Eyal. - 242 pages : illustrations ; 21 cm. Includes index. ISBN: 9780241184837 (hbk.) : £12.99 Nat. Bib. No.: GBB4A3685 bnb Subjects--Topical Terms: New products--Psychological aspects.Consumer behavior. Dewey Class. No.: 658.575019