Preschool is a great time to introduce your child to flashcards and worksheets; And prepare him/her for formal school. Mega Workbook provides high quality free printable worksheets, flashcards, eBooks and study material for preschool and kindergarten children. Their content is designed with careful consideration of a child's learning needs at this age. Use these free printable worksheets to teach letters, numbers, colors, shapes and other preschool/kindergarten skills to your child.