These are all books that I have used in my own journey, which I recommend for you. Click the title of the book for book reviews.
On Writing
On Writing Well, 30th Anniversary Edition: The Classic Guide to Writing Nonfiction – William Zinsser
On Writing– Stephen King
Bird by Bird: Some Instructions on Writing and Life – Anne Lamott
Zen in the Art of Writing: Essays on Creativity – Ray Bradbury
If You Want to Write: A Book about Art, Independence and Spirit – Brenda Ueland
The Elements of Style Illustrated– Strunk and White
On Self-publishing and Print on demand
Dan Poynter's Self-Publishing Manual, 16th Edition: How to Write, Print and Sell Your Own Book (Self Publishing Manual) – Dan Poynter
Sales and promotion for your book (including internet)
1001 Ways to Market Your Books, Sixth Edition (1001 Ways to Market Your Books: For Authors and Publishers) – John Kremer
Sell Your Book on Amazon: The Book Marketing COACH Reveals Top-Secret – Brent Sampson
Web Copy That Sells: The Revolutionary Formula for Creating Killer Copy Every Time – Maria Veloso
Podcast Solutions: The Complete Guide to Audio and Video Podcasting, Second Edition – Michael W. Geoghegan & Dan Klass