- Apps for Learning: 40 Best iPad/iPod Touch/iPhone Apps for High School Classrooms
- Apps for Learning, Middle School: iPad, iPod Touch, iPhone
- Apps for Learning - Elementary School Classrooms
- Receding Noah's Flood as Trigger for Seafloor Spreading
- Il diluvio di Noè in regresso come fattore scatenante della diffusione dei fondali marini (Italian Edition)