James S. Aber, a caring husband/father. He is the one who started us on the journey of using, collecting, and creating maps as we traveled the U.S. and beyond. Throughout the process of writing this book, we had the opportunity to learn from him and benefit greatly from his expert editorial guidance and steadfast encouragement.

Amy A. Harris-Aber, a loving wife/daughter-in-law. She was always there with constant support, help, and advice, and put up with the long hours of writing and editing.

Jay T., a one-of-a-kind son/brother, Lauren R. and Rose E. Aber, completing this amazing family. The travelers who keep us busy simply finding all the wonderful places they visit and explore by foot, bicycle, car, train, boat, and plane.

R. Kenneth Aber, the best father-in-law/granddad in the world. For continually orienting and inspiring us to travel both physically and intellectually.

In memory of parents/grandparents, Marian M. and Henry A. Ward, and Sarajane S. Aber. You gave us unconditional support, artistic direction, and so much more.

Finally, we hereby dedicate this book to all of the past and present map librarians, who perform their jobs quietly with efficiency and care, fighting to retain and catalog the map and geospatial data collections, which are often relegated to basements or outsourced beyond imagination.