Yellow Pigs Day events have been held by mathematicians since at least the 1960s. The most elaborate festivities are held at Hampshire College Summer Studies in Mathematics (HCSSiM), where the holiday has been celebrated annually for roughly 34 years. (Thanks Wikipedia!)

Health, Fitness and Dieting
Yoga, The Back Pain Cure: The Yoga Therapy Back Care and Low Back Pain Treatment Program
Reflexology: The Essential Guide for Applying Reflexology to Relieve Tension, Treat Illness, and Reduce Pain
Manifesting Mindfulness: 7 Easy Steps to Stressing Less and Living More
Baby Huey: A Cautionary Tale of Addiction
Energy Healing: Bundle: Book 1: Chakras for Beginners + Book 2: Reiki for Beginners

Science Fiction and Fantasy
Firemancer Collection (Fated Saga Box Set Book 1)
EMP (The Districts Book 1)
CHARLIE DEAD and the So-Called Zombie Apocalypse
A Latent Dark
Jason Teufel
Loki- Kindle Edition

Mystery/Thriller/Suspense
Gabe’s Plan
Whitechapel: The Final Stand of Sherlock Holmes
Kill Me Twice (A Zeke Edison Novel Book 1)
Caribbean Moon (Manny Williams Series Book 1)
Superbia Collected Edition (Books 1 + 2, Way of the Warrior, + More)

All books listed are priced at $ 0.00 on the Amazon website. You do not need to subscribe to the Amazon Kindle Unlimited program in order to purchase these for free. Check the price listed as they change every few days. Enjoy!