| title | ISBN-13 | year of publication |
|---|---|---|
| Los dinosaurios/ The Dinosaurs | 978-970-22-1652-0 | 2007 |
| Los inventos/ The Inventions | 978-970-22-1649-0 | 2007 |
| Questions and Answers: Ancient Civilizations | 978-0-606-20871-0 | 2002 |
| Questions and Answers: Inventions | 978-0-606-20872-7 | 2000 |