My print book Retrograde is available in bookstores for $12.99. It remains available on Kindle for $0.99. Coas Bookstore in Las Cruces carries the book. This is a photo of my table for my book signing near the entrance of Coas Bookstore. I will do a reading at the Silver City Library soon. Check out the Moon Pies, the Milky Ways in the little spaceship, the dark Hersheys Kisses in the dark matter bowl, and the star bursts in the black hole bowl. Of course after sampling all those, you need some refreshment. Try the liquid hydrogen and oxygen in the bottles on the side.