The 7th edition of Data Abstraction & Problem Solving: Walls and Mirrors was awarded the McGuffey Longevity Award from the Textbook and Academic Authors Association. My co-author, Tim Henry, and I were honored to receive the award at the Association's 31st annual conference, which took place in Santa Fe, New Mexico. The award recognizes textbooks whose "excellence has been demonstrated over time." Indeed, the first edition of this book was published in 1995. Our 6th edition also received this award in 2016.