The "Explore and Learn Homeschooling Books 1, 2, 3 4" is a series of hardcover books written in English by mixed authors. Focused on mathematics and sciences, these books cater to homeschooling students and provide educational content in an engaging format. Published by Southwestern, this series offers a comprehensive approach to learning through hands-on activities and interactive lessons, making it a valuable resource for families looking to supplement their homeschooling curriculum.