This article describes a half-day pre-conference focused on the ins and outs of assessing “Big Deals.” The presenters gave an overview of issues related to “Big Deals,” and engaged the attendees in discussions about their own experiences with the topic. They then detailed the process of assessing “Big Deals” at their institution, including their methods for evaluating usage statistics. Attendees were provided with sample Excel spreadsheets for hands-on exercises to practice applying the methods described.