Welcome to the OPT Bookstore. We offer a powerful selection of the very best astronomy books and astronomy-related videos along with software, atlases, and unique gifts. Our book selection spans tops from astro-imaging and the solar system to building your own telescope. We have a huge selection of observing guides, atlasas, maps and planispheres to guide you in the right direction and a complete educational library of instructional astronomy software. These wonderful teaching aids can guide you through learning about your telescope right into the basics of astrophotography and CCD imaging! Looking for a gift for the astronomer who seems to have everything? Spark a new hobby by giving them their first meteorite, or give them something a space-themed Monopoly game to keep them busy on those cloudy nights.