Today we discuss a user request on how to implement a favorite state for each of our contacts. We'll be modify the project from lesson 3 to include a custom cell and work from there. Ep 3 https://youtu.be/Q8k9E1gQ_qg Custom Delegation Lessons: https://www.letsbuildthatapp.com/course_video?id=1852 https://www.letsbuildthatapp.com/course_video?id=1502 Intermediate Training Core Data https://www.letsbuildthatapp.com/course/intermediate-training-core-data Instagram Firebase Course https://www.letsbuildthatapp.com/course/instagram-firebase Facebook Group https://www.facebook.com/groups/1240636442694543/ iOS Basic Training Course https://www.letsbuildthatapp.com/basic-training Completed Source Code https://www.letsbuildthatapp.com/course_video?id=2262 Follow me on Twitter: https://twitter.com/buildthatapp