Leonard, Kelly Yes, and : how improvisation reverses "no, but" thinking and improves creativity and collaboration--lessons from the second city Kelly Leonard and Tom Yorton - New York, NY : HarperBusiness, 2015. - x, 240 pages ; 24 cm. Includes bibliographical references. ISBN: 9780062248541 LCCN: 2014028519 Subjects--Corporate Names: Second City (Theater company) Subjects--Topical Terms: Creative abilityImprovisation (Acting)Interpersonal relations LC Class. No.: BF408 / .L464 2015 Dewey Class. No.: 792.7/6