kombinatorics

As a first year studying pure mathematics and computer science, I've been exposed to many different algorithms, trees, data structures and etc. Many of these are fascinating and I always tree to think of examples of how I would be able to implement them in the real world.

However, I am starting to find it hard to keep track of so many different algorithms, data structures, tree and etc. Is there a "Big Book of Algorithms" that contains most, if not all of the essential algorithms?

Thanks.