I looked around and haven’t seen anyone post about this, but the free bootcamp on frontendmasters.com covers most of the material in the first two certificates here. It’s nice to have some video to go along with the lessons and its helpful that they are teaching in a real class. The students will ask questions that you may be wanting to ask yourself and you can gain some extra clarity. Also, if you are in school don’t forget to sign up for the github student developer pack. You’ll get 6months of full access to frontendmasters, github pro and a ton of other useful tools!