Annals of the Deep Sky

As an updated successor to Burnham's Celestial Handbook, this ongoing series explores the latest scientific understanding of deep sky objects, providing clear explanations of astrophysical theories and concepts while interweaving interesting stories in the history of astronomy. Highly recommended! From the back cover:  

"Each constellation chapter includes... unique and informative graphics, visual descriptions of objects in various-sized telescopes, accounts of historical observations, summaries of current astrophysical research, and suggestions for making one's own observations."

Volume info:

1. Jeff Kanipe and Dennis Webb, Annals of the Deep Sky:  A Survey of Galactic and Extragalactic Objects (Richmond, VA: Willmann-Bell, Inc., 2015), vol. 1: Andromeda, Antlia, Apus, Aquarius
2. Jeff Kanipe and Dennis Webb, Annals of the Deep Sky:  A Survey of Galactic and Extragalactic Objects (Richmond, VA: Willmann-Bell, Inc., 2015), vol. 2: Aquila, Are, Aries, Auriga, Boötes, Calum
3. Jeff Kanipe and Dennis Webb, Annals of the Deep Sky:  A Survey of Galactic and Extragalactic Objects (Richmond, VA: Willmann-Bell, Inc., 2016), vol. 3: Camelopardalis, Cancer, Canes Venatici, Canis Major
4. Jeff Kanipe and Dennis Webb, Annals of the Deep Sky:  A Survey of Galactic and Extragalactic Objects (Richmond, VA: Willmann-Bell, Inc., 2016), vol. 4: Canis Minor, Capricornus, Carina, Cassiopeia
5. Jeff Kanipe and Dennis Webb, Annals of the Deep Sky:  A Survey of Galactic and Extragalactic Objects (Richmond, VA: Willmann-Bell, Inc., 2017), vol. 5: Centaurus, Cepheus, Cetus
6. Jeff Kanipe and Dennis Webb, Annals of the Deep Sky:  A Survey of Galactic and Extragalactic Objects (Richmond, VA: Willmann-Bell, Inc., 2018), vol. 6: Chameleon, Circus, Columba, Coma Berenices, Corona Australis
7. Jeff Kanipe, Annals of the Deep Sky:  A Survey of Galactic and Extragalactic Objects (Richmond, VA: Willmann-Bell, Inc., 2019), vol. 7: Corona Borealis, Corvus, Crater, Crux
8. Jeff Kanipe, Annals of the Deep Sky:  A Survey of Galactic and Extragalactic Objects (Richmond, VA: Willmann-Bell, Inc., 2020), vol. 8: Cygnus, Delphinus, Dorado