This set of titles on the solar system is a serviceable supplement for STEM collections. Visuals that relate directly to content, reinforcing concepts, and a series of definitions and informational bits come together to create satisfying topic overviews. The final pages of each book offer straightforward quiz questions that provide checks for understanding, plus an open-ended query that encourages audiences to think beyond the text. This set will be attractive to browsers, independent readers, and young researchers alike.