Ready References
A Guide to Backyard Astronomy
The Art of Using a Telescope
Power and Aperture in Binoculars
Variable Stars Explained
AAVSO Observing Programs
Molding and Casting
Starting a Rock Collection
Ready References A Guide to Backyard Astronomy 
The Art of Using a Telescope Power and Aperture in Binoculars Variable Stars Explained AAVSO Observing Programs 
Molding and Casting Starting a Rock Collection