Introduction to Information Technology
This book contains almost all topics discuss further in the IT and CS field in detail. The book defines Information Technology as the technology that is used to acquire, store, organize, process and disseminate processed data, namely, information: Computer science Books
The best book contains a lot of information about the digital world.
The unique aspect of this book is to examine processing all types of data: numbers, images, audio, and video.
There are some other books to consider like operating systems and database management.