"ORDINARY AND PARTIAL DIFFERENTIAL EQUATIONS" is a comprehensive textbook covering differential equation concepts. The book explores topics such as first-order equations, boundary value problems, and numerical methods, with detailed explanations and examples. With a focus on problem-solving, this book helps students develop skills in solving ODEs and PDEs. An excellent resource for students and researchers seeking to master differential equations, with practice problems and exercises. Well-structured and thorough, ideal for advanced mathematics students. Highly recommended.