My sister got DS
this one
for his baptism... It is very simple & straight-forward, not too many words, it's a board book, seems just right for this age (he just turned 2). I will probably get him a more detailed one in a year or two. We also have a ton of other books about God. We have the "My Little Golden Book About God" the pp mentioned, and "A Night Night Prayer" (one of my favorites, LOVE the pictures!)... "All God's Creatures", "Bible Songs" and a bunch of others (I just pick up whatever I see at the thrift store that looks nice). So we don't really differentiate between religious books & non-religious, they are just all part of his book collection and we read them all throughout the day along with his other books. I guess this is how I want him to view it in general -- I want God to be a part of his everyday life, not just specific times like church or bedtime prayers.
We take him to the children's program during Mass (DH or I go with him, he's by far the youngest) and he learns a lot there, especially certain religious acts and traditions. We do talk with him about God creating the world, about Jesus, etc. but not in great detail because I don't think he'd grasp it... We explain how Mommy loves him, Daddy loves him, God loves him... we also sing songs... but mostly we pray together (at dinner and before bed, and other times for various reasons) and unless we're praying for someone/something specific, we just let him say all the things he's thankful for (Mommy & Daddy, Grandma & Grandpa, books, pillows, the humidifier... lol it's very cute!) Then he says "Night-night God, I love you God!" or "AMEN! Eat food now?"
So I guess at this point we are just kind of exposing him to the whole concept of God as well as the specifics of our religion. I don't really expect him to fully understand until he's older, but it's just like anything else we teach them at this age... sometimes I'm surprised at how much he really takes in! We're just laying the foundation...