"Hey Lola-- I want to buy your books however it benefits you the most."
There's no best answer. No matter where you buy my books, it helps me in some way.
Special ordering through your local bookstore, such as Avid Reader in Brisbane, Australia, brings awareness, and helps support small businesses to boot. #supportyourindependentbookstore
Buying from independent sex-positive/queer book sellers including Good Vibrations or Jiz Lee or Spartacus Books makes me look good, it makes you look good. The books are signed, so they look good--> win-win-win.
Buying from big companies like Amazon and iTunes helps promote the title, both domestically and internationally. The royalties suck, it's true, but it's a huge boost when you leave a review.
Buying directly from me-- I make the most money on the paperbacks this way, but it's stressful. I'll worry every day it's lost in the mail until I hear from you that it's arrived. On the flip side, I'm happy to personalize an autograph!
Buying the audiobook directly from me. I get a sweet deal so I can offer it at a lower price— win-win!
Honestly, I make the highest royalties from ebooks, but not everyone likes that format, and...
I really, really encourage you to loan out or hand off the paperback to someone who needs it when you're done. I make zero bucks in the exchange, but it gets the word out and spreads the love! :)