1
Astronomy of the Milky Way [E-Book] : The Observer's Guide to the Southern Sky /
2
Astronomy of the Milky Way [E-Book] : The Observer's Guide to the Northern Sky /
3
Patrick Moore's Observer's Year: 366 Nights of the Universe [E-Book] : 2015 - 2020 /
4
Observer's Guide to Star Clusters [E-Book] /
...The Patrick Moore Practical Astronomy Series...

Full text 
5
A Field Guide to Deep-Sky Objects [E-Book] /
...The Patrick Moore Practical Astronomy Series...

Full text 
6
Astrophysics is Easy! An Introduction for the Amateur Astronomer [E-Book] /
...Patrick Moore’s Practical Astronomy Series...

Full text 
7
Observer’s Guide To Stellar Evolution [E-Book] : The Birth, Life and Death of Stars /