This video is part of the Build a Web App with Angular and Firebase Course - https://angular-university.io/course/build-an-application-with-angular2?grpp=f&utm=ytfb&couponCode=FIREBASE_YOUTUBE In this lesson we are going to learn how to structure our data in Firebase: we are going to learn how to denormalize data, and why that is necessary. We are going to learn how to build a one to many association in Firebase. You can also see this tutorial at the Angular University - https://angular-university.io/lesson/angular2-firebase-data-modelling For more videos tutorials on Angular , check the Angular University website - https://angular-university.io/ Follow us: Twitter - https://twitter.com/AngularUniv Google+ - https://plus.google.com/u/1/113731658724752465218 Facebook - https://www.facebook.com/angular.university Check out the PDF E-Books available at the Angular University - https://angular-university.io/my-ebooks