This document summarizes an upcoming presentation by Jim Markwith on open source software essentials and licensing compliance. The presentation will cover topics such as defining open source software, how to think about OSS, categories of OSS licenses, different uses of OSS, distributing OSS, GPLv2 applications, OSS in the cloud, OSS related litigation, OSS audits, and OSS pedigree. Jim Markwith is an experienced attorney who will share his expertise on these important legal issues regarding open source software.