This document provides an overview of working with startups in the corporate context. It discusses 5 levels for corporations to build relationships with startups: 1) Invitation, 2) Start a relationship, 3) Immerse, 4) Invest, and 5) Tactic & Strategy. The goal is for corporations to gain the startups' trust over time by understanding them, funding small projects, addressing barriers like the Not Invented Here syndrome, and eventually negotiating long-term agreements or taking minority stakes. The document emphasizes that corporations need a new mindset and processes to work effectively with startups, which have a different DNA than large companies.