Digital principles switching theory

From Chapter O: "Keep in mind that seldom will you find a field of study as vast as that of digital design and its related applications, yet seldom will you find a field in which you can become more
productive in as short a period of time.
In short, with a limited background in other basic sciences and a desire to create, you
can start designing digital circuits in a limited period of time."

This book starts from digital design to programmable logic devices to Switching elements and implementation.
It has 12 chapters, beginning with 0 and comes with 2 appendices.