・Crossing the Chasm: Marketing and Selling High-tech Products to Mainstream Customers (1991, revised 1999 and 2014). ISBN 0-06-051712-3キャズムhttps://akon.hatenablog.com/entry/2021/03/07/215538キャズム2 キャズム Ver.2 増補改訂版 新商品を…