Some major types and examples of non-fiction books include:
1.Essays- "Inventing the Enemy" by Umberto Eco
2.Popular science books- "A Brief History of Time" by Stephen Hawking
3.Biographies- "Jackson Pollock: An American Saga" by Steven Naifeh and Gregory White Smith
4.Textbooks- Henry Gray's "Anatomy of the Human Body"
5.Travel books- "City of Djinns" by William Dalrymple