This Lessonette® exercise is one of a series on the topic of "Compensatory Damages." This particular Lessonette interactive tutorial explores the differences among each of the three main types of legally-protected "interests" most commonly involved in any damages case: the expectation interest, the reliance interest, and the restitution interest. It is designed as an "Introduction" to the basic distinctions among each of these different interests, as well as a practical guide to determining when one interest should be asserted instead of another. For beginning law students, this Lessonette interactive tutorial should not be attempted until the "Basic Terminologies in Compensatory Damages" Lessonette has been completed. Students who have already completed foundational courses in "Contracts" may wish to use this Lessonette exercise as a review of these same basic "Damages" terminologies, or to better understand more complex issues presented by other courses in which substantive Damages issues or remedies issues may be presented. For comparative purposes designed to illustrate the various distinctions among each of these three different types of legally-protected damages "interests," this Lessonette exercise focuses primarily upon contract damage examples.