**Preface to "Fractional-Order System: Control Theory and Applications"**

Thach Ngoc Dinh would like to dedicate this book to the 70th birthday of his father Dinh Ngoc Thuan and to all his beloved family members for their constant support. Shyam Kamal would like to dedicate this book to his daughter Adhita Kamal and his wife Aprajita Kamal for their constant support. Rajesh Kumar Pandey would like to dedicate this book to his parents and his beloved family members for their constant support.

> **Thach Ngoc Dinh, Shyam Kamal, and Rajesh Kumar Pandey** *Editors*
