Consider the tone.
Who did you write the book for?
What are their expectations?
What are your intentions?
Examples of tone:
Formal (The Artist’s Way by Julia Cameron)
Conversational (Steal Like an Artist by: Austin Kleon)
Academic (Daring Greatly by: Brent Brown)
Bonus Module:
Jessica Allowski, my editor for How it Feels to Me, has generously recorded a bonus module for you about the editing process.