Operation and Modeling of the MOS Transistor has become a standard in academia and industry. Extensively revised and updated, the third edition of this highly acclaimed text provides a thorough treatment of the MOS transistor--the key element of modern microelectronic chips.
This is a very good book to understand about the concepts of MOSFETs when applied with voltages. The book features the physics background of the operation of the device. It is highly recommended as a textbook to start with Modeling of MOS Transistor.