In this chapter, we were introduced to the terminologies and conventions used for relationships in Entity Framework. We started right from a fully-defined relationship, and from there we started trimming the relationship, but still made the relationship work. Finally, we customized and paired up navigational properties with customized properties, and still made the relationship work. This chapter has introduced us to relationships (we also had a peek at the Fluent API), but we didn't get the chance to understand different relationships. Let's explore them in Chapter 4, Building Relationships – Understanding Mapping.