...

1. Idea
2. Forming that idea into something bigger
3. Initial write
4. More chapters
5. More chapters
6. More chapters
7. --insert breakdown and procrastination here--
8. More chapters 
9. More chapters
10. More chapters
11. FINISH THE BOOK
12. --insert break--
13. Revise
14. Revise
15. Revise
16. Revise
17. Discover plot holes
18. Revise
19. Revise
20. Revise
21. FINISH THE BOOK ENTIRELY.