"Practical Mathematics Part IV: Trigonometry and Logarithms" offers a comprehensive exploration of these essential mathematical concepts. Designed for practical application, this book provides clear explanations and numerous examples to aid understanding. Beginning with the fundamentals of trigonometry, it progresses through trigonometric functions, identities, and their applications in solving real-world problems. The section on logarithms covers their properties, computations, and uses in various fields. This book is a valuable resource for students, engineers, and anyone seeking a solid foundation in trigonometry and logarithms.