This website is designed for both the casual user and the student. I have designed these online textbooks to help reduce the cost of attending college for my students. If you are a teacher somewhere else on this fine planet and you wish to use the materials found here for your class, please feel free to do so. If you are a casual reader, I hope you find the material provided to be useful. Please feel free to offer any suggestions for improvement. Peace and goodwill to you.