Simeon Simeonov and Itamar Novick are launching a series that catalogs common startup anti-patterns, drawing on examples from more than 100 companies. An anti-pattern is a commonly used process, structure, or pattern of action that, despite appearing effective, produces more negative outcomes than positive ones. Simeon Simeonov introduced the concept in 2013, and the new series seeks to illustrate how these patterns increase risk for founders and investors. The list, which is still being compiled, includes items such as Elephant hunting, Bad revenue, Premature scaling, and many others. The authors plan to provide concrete examples from their experience and from guest founders in their portfolio.