I taught various chemistry courses over a 30-year career at Cornell University, Wisconsin Lutheran College, Hope College, Grand Valley State University, and Grand Rapids Community College. I retired in December 2020 after teaching for 25 years at GRCC. Most of the courses I taught at GRCC were at the introductory level, and so I spent a great deal of time trying to find ways to engage the students. I found that most commercially available textbooks were intimidating to the students, who therefore rarely opened their books up other than to look at the homework assignments. The ability to use LibreTexts to create a textbook specifically designed for my classes improved my style of teaching, and changed the way my students made use of their texts.