**2025 Textbook and Academic Authors Association (TAA) McGuffey Longevity Award Winner**Introductory Differential Equations, Sixth Edition provides the foundations to assist students in learning not only how to read and understand differential equations, but also how to read technical material in more advanced texts as they progress through their studies. The book's accessible explanations and many robust sample problems are appropriate for a first semester course in introductory ordinary differential equations (including Laplace transforms), for a second course in Fourier series and boundary value problems, and for students with no background on the subject. - Gives students a complete foundation on the subject, providing a strong basis for learning how to read technical material in more advanced texts - Includes new, comprehensive exercise sets throughout, ranging from straightforward to challenging - Offers applications and extended projects relevant to the real-world through the use of examples in a broad range of contexts - Provides online support, including a full solutions manual for qualified instructors and a partial solutions manual for students