A First Course in Differential Equations with Modeling Applications (with CD-ROM and iLrn Tutorial)
"The writing style and level of exposition are exactly what they should be for our course…. The greatest strengths of the book are its organization, its clear explanations of material and its problem sets.""I believe Zill writes very well. He seems to explain ideas and concepts with great clarity. He introduces new topics slowly and methodically so the student will grasp the idea as he/she reads along."    "Zill has a strong textbook: 1. He covers the important material in a depth suitable for a first course. 2. He writes well, is easy to read and understand. 3. He has a good mix of theory and application. As an engineering faculty teaching differential equations, I really appreciate the examples that show how differential equations arise and why they are useful things to study."