TY - BOOK AU - Berger,Jonah TI - Contagious: why things catch on SN - 9781471111693 (pbk) AV - HF5415.153 .B463 2013b U1 - 658.834 2 BER 23 PY - 2013/// CY - London PB - Simon & Schuster KW - New products KW - Consumer behavior KW - Popularity KW - Economic aspects N1 - Includes bibliographical references and index ER -