Some neat books here...
For myself, I've been star gazing for over 45 years now and in that time have accumulated a fair size collection of astronomy books (around a hundred or so). However, these titles are the ones that I still use on a very regular basis:
Lunar viewing:
Atlas of the Moon (1978), Antonin Rükl - still one of the best traditional moon atlases out there.
21st Century Atlas of the Moon (2013), Charles A. Wood - very clear photographic atlas and the one that I use for making a list of lunar targets to look at or to confirm that I did see what I thought I saw!
The Hatfield Photographic Lunar Atlas (1999), edited by Jeremy Clark - the one that I still use at the actual eyepiece whenever I'm out viewing the moon, despite the low res photos. Very well labelled atlas.
Understanding what I'm seeing when viewing the moon:
The Modern Moon (2003), Charles A. Wood - great for understanding what geological processes you're looking at.
Luna Cognita (2020), Robert A. Garfinkle - great for the smaller detail, plus so much more.
Viewing the planets:
Sky Watcher's Handbook (1993), edited by James Muirden - some great chapters on viewing Mars, Jupiter and Saturn.
Viewing DSOs and binary stars:
Burnham's Celestial Handbook Vol I to III (1978), Robert Burnham Jr. - need I have to say anything about these books?
Exploring the Night Sky with Binoculars (2001), Patrick Moore - useful for binocular work but mostly used by me to view the 'easy' targets with my telescope.
Planning ahead for my star gazing sessions:
A Field Guide to the Stars and Planets (1983), Menzel & Pasachuff - still a great 'field guide' to the night skies.
The Edmund Sky Guide (1977), Sam Brown - I have used this little book since 1978 and it still is the one that I grab when I'm planning ahead for a night under the stars. Easy to read sky maps make it the one that I use most often.