In 2018, my coauthor, Al Doerr, passed away. The previous year, he had retired after 50 years on the faculty at UMass Lowell. In his honor, the Mathematical Sciences Department has established an endowed scholarship fund in his name. If you or your students want to thank us for the book, you could donate even a few dollars to the Prof. Alan Doerr Scholarship Fund at http://www.uml.edu/give. All proceeds go to a scholarship endowment for our math majors.

Spring 2020 update: The first Doerr Scholarship of a bit over $1,000 was awarded to a deserving Math/Physics double major!