1
Astrophysics is Easy! An Introduction for the Amateur Astronomer [E-Book] /
2
Concise Catalog of Deep-sky Objects [E-Book] : Astrophysical Information for 500 Galaxies, Clusters and Nebulae /
3
Exploring the Moon [E-Book] : The Apollo Expeditions /
4
Fare astronomia con piccoli telescopi [E-Book] /
5
The New Amateur Astronomer [E-Book] /
6
The NexStar User’s Guide [E-Book] /
7
Observing the Moon [E-Book] /
8
Practical Amateur Spectroscopy [E-Book] /
9
Satellite Orbits [E-Book] : Models, Methods and Applications /
10
A Spectroscopic Atlas of Bright Stars [E-Book] : A Pocket Field Guide /
11
Visual Astronomy in the Suburbs [E-Book] : A Guide to Spectacular Viewing /