The B4FIAR and FIAR books are great for 3 year olds as they have great pictures and simple, sweet stories. I just added them in with the SCM Early Years suggestions.
Mine love to “read” them all by themselves. 😉 I think that they enhance my dd’s desires to read and learn even if we are “too old” by building their tastes for good literature AND art instead of twaddle. We used the lesson handbook and several of the lapbooks and my kiddos still play with those lapbooks often while I am busy with the older kids.
Our copies of these books are left out as free reads and they still ask me at 4& 5 yo to read their favorites with/to them. =)