"Digital Signal Processing" by John Proakis is a comprehensive textbook on the topic of digital signal processing. Published by Pearson in 2006, this book is written in English and serves as a valuable resource for students and professionals in the field. Authored by John Proakis, the book covers a wide range of topics within digital signal processing, making it a must-have for those looking to deepen their understanding of this field. With detailed explanations and insights, this book serves as a valuable addition to any library related to signal processing.