School Library Journal
Each series shows the dangerous adventures both on and off the planet Earth. Using colorful backgrounds that mirror the subject, each title starts with a short table of contents broken down by sections. Short paragraphs with vocabulary words in bold and another color are accompanied by full page pictures that are labeled. Each title briefly describes the history, technology, and the preparation/training involved in the dangerous journey with a highlight of a notable explorer. Side graphics of how to plan for the journey, scientific ideas, such as the Kármán Line, and what would happen without the appropriate gear or technology are used to add depth to the text. The back matter has a glossary, how to learn more, and an index. While many of these dangerous journeys require extreme dedication and study, titles may excite reluctant beginning readers and the format will not intimidate them. VERDICT: A good series for reluctant readers who enjoy real adventures.