Textbooks
Author: Geller, Freedman & Kaufmann
Title: 'Universe', 11th edition (2019)
Publisher: W. H. Freeman
ISBN-10: 1-319-03944-8
ISBN-13: 978-1-319-03944-8
References:
 
1. Other textbooks at an introductory level:
  1-1 Seeds & Backman: 'Foundations of Astronomy'
  1-2 Arny & Schneider: 'Explorations, An Introduction to Astronomy'
  1-3 Kaler: 'Astronomy!'
  1-4 Chaisson & McMillan: 'Astronomy Today'
  1-5 Zeilik: 'Astronomy: the Evolving Universe'
 
2. Some old textbooks which are 'more astrophysical':
  2-1 Shu: 'The Physical Universe -- An Introduction to Astronomy'
  2-2 Carroll & Ostlie: 'An Introduction to Modern Astrophysics'
  2-3 Bowers & Deeming: 'Astrophysics'
 
3. A fundamental, practical textbook for observations:
  3-1 Birney: 'Observational Astronomy'
 
4. A more advanced book concerning observations and astrophysics:
  4-1 Smith: 'Observational Astrophysics'