have a set with animals and another one with objects around the house (both with realistic pictures).
the way you use them is you pull 4-5 flashcards and say each object/animal on it while showing it to your toddler. then you can lay the cards down and ask your toddler questions to encourage them to interact and respond. you can ask them to point a certain object, for example. they will learn so fast from these! you can also use first words books for this. my toddler loves this one.
the brain rules for baby book is all about how a baby's brain works, what you can do to help them achieve 