Babies & Toddler
Here are some great board books that we recommend for Babies & Toddlers:
First Words and Pictures: Animals by Margot Channing
Yummy, Yucky by Leslie Patricelli (This author also has several more board books that kids love!)
Yawn by Sally Symes
Llama Llama Yum Yum Yum! by Anna Dewdney
From Head to Toe by Eric Carle (Additionally, any other Eric Carle book! You can't go wrong.)