Jay Conrad Levinson is the author of Guerilla Marketing books, which are listed among the 100 best business books ever written. He is a popular speaker who regularly delivers presentations in both the US and abroad. A former executive with Leo Burnett Advertising and J. Walter Thompson Advertising, he is an unquestioned legend in the marketing industry. Jeannie Levinson is the coauthor of Startup Guide to Guerrilla Marketing. She serves as the President of Guerrilla Marketing International and is a founder of the Guerrilla Marketing Association, a subscription website that has been a support system for small business since l999.