Biosensors are essential components of modern technology, and understanding them is essential for anyone in the engineering or medical industries. A great book for reading about biosensors is "Biosensors: Fundamentals, Design, and Applications" by K. Palaniappan. This book provides an in-depth overview of the fundamentals of biosensors and explores the various design techniques and applications. It contains a wealth of useful information, such as the principles of operation, design considerations, and real-world examples of biosensors in action. It also provides a comprehensive review of the current research in the field and looks at the future of biosensors. For anyone looking to gain an understanding of biosensors, this book is an excellent choice.