In today's lesson, we quickly discuss some very basic concepts of OOP: classes and objects with protocols and interfaces. I'm hoping that walking through this exercise with you guys will shed some light on what is possible with these concepts. Podcasts Course https://www.letsbuildthatapp.com/course/Podcasts 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/ Completed Source Code https://www.letsbuildthatapp.com/course_video?id=2972 Instagram: https://www.instagram.com/buildthatapp/ Twitter: https://twitter.com/buildthatapp