Lab Rat Chitter

Next off the rank for audiobooks is Lab Rat One! 
Apple (search through Apple Books).Audible.Kobo.Scribd.Also available through a host of other channels.  Check your favourite distributor to see if it's there.

I've also commissioned an audiobook for And All the Stars.  While I don't think audiobooks will be a big return on investment for me, I love listening to them myself, so couldn't resist at least one more.