Is complexity theory important in computer science

Computational complexity books
Essentially, computational complexity theory is rather important because both in theory as well as in practice, it helps computer scientists understand the limits of what computers can do and what they cannot do..
Computational complexity books
Theoretical Computer Science forms the scientific foundation for the study of algorithms and computation.
Theoretical Computer Science impacts computing and society by identifying key issues in new areas and framing them in ways that drive development..
Computational complexity theory books
In theoretical computer science and mathematics, computational complexity theory focuses on classifying computational problems according to their resource usage, and relating these classes to each other.
A computational problem is a task solved by a computer..
How important is theory in computer science?
Theoretical Computer Science forms the scientific foundation for the study of algorithms and computation.
Theoretical Computer Science impacts computing and society by identifying key issues in new areas and framing them in ways that drive development..

Both in theory and in practice, complexity theory helps computer scientists determine the limits of what computers can and cannot do.

Computational complexity books