Pre K and Kindergarten: Scholastic Sight Word books, Dr. Seuss books. Read as a family and help your child sound out simple words.
1st grade: Pete the Cat series by James and Kimberly Dean, Fly Guy series by Tedd Arnold, and the Pigeon series of books by Mo Willems.
2nd grade: Henry and Mudge series by Cynthia Rylant, Fluffy series by Kate McMullan