This geometry textbook explains the principles of both plain and solid geometry. It is easy to understand and follow. Samples and illustrations are provided to guide the student.
One of the best plane and solid geometry books out there. Not many examples, which I think Arthur Weeks does intentionally to make you think. The proofs are some of the most rigorous. In chapter 14, there are physics applications relating to similar triangle proofs in optics. Moreover, a special section of concylic circle proofs are dedicated. This book provides mental stimulation and makes you think outside of the box (creativity and a unique form of thinking). If a person would like to major in math, science or engineering. I recommend this for an honors geometry course in high school and to have at home to sharpen critical thinking skills.