This boxed set consists of the following four volumes:
0201896834 / 9780201896831 Art of Computer Programming, Volume 1: Fundamental Algorithms
0201896842 / 9780201896848 Art of Computer Programming, Volume 2: Seminumerical Algorithms
0201896850 / 9780201896855 Art of Computer Programming, Volume 3: Sorting and Searching
0201038048 / 9780201038040 Art of Computer Programming, Volume 4A: Combinatorial Algorithms