Sixty million students in 120 countries depend on Houghton Mifflin Harcourt for their education. They are the world’s largest provider of books and magazines for pre-K-12. Their unique blend of individualized content, cutting-edge education technology and a holistic approach has helped them lead the educational publishing market since 2007, as well as promote teacher effectiveness and student achievement in a wide range of learning environments worldwide.

With origins dating back to 1832, the Company also publishes an extensive line of reference works and award-winning literature for adults and young readers.

This series of illustrations was completed for Houghton Mifflin Harcourt earth science titles and covered topics such as ecosystems, pollution and sustainability.