Crossing the Chasm
 Crossing the Chasm: Marketing and Selling High-Tech Products to Mainstream Customers or simply Crossing the Chasm (1991 revised 1999 and 2014) is a marketing book by Geoffrey A. Moore that focuses on the specifics of marketing high tech products during the early start up period. Moore's exploration and expansion of the diffusions of innovations model has had a significant and lasting impact on high tech entrepreneurship.