For those interested in exploring veganism, I recommend the free online version of Erik Markus’ The ultimate vegan guide: Compassionate living without sacrifice. This book presents very useful information about veganism, without being too preachy. I am a fan of Markus’ blog, which provides intelligent insights into veganism. Markus is a well-respected and accomplished author on veganism, as well as an animal rights advocate. Even if you’re not interested in exploring veganism, if you have vegan friends or family members, this book provides an important perspective into their choice of lifestyle.