Adam Hoover is a sales engineer at Intuit who has worked with QuickBase since 2013. In his presentation, he discusses relationship types in QuickBase like one-to-many and many-to-many relationships. He explains how to create and diagram relationships between tables to connect related data. Hoover also covers limitations of one-to-many relationships and how to address them using techniques like reverse relationships, report links, and synchronizing or importing external data.