An Introduction to Algorithms

Algorithms, loosely translated, are systems for doing things. Algorithms are thus the link from pre-history to the modern world – without algorithms we would have an inanimate universe without all the mess and complexity of real life. It turns out that the history of algorithms is messy. 

There are also general theories of algorithms, and those ideas are not messy at all; they are very beautiful, powerful and should be required reading for the internet age.

Professor Harvey has written a blog about this lecture and some of the code he used in the making of it: https://www.prof-richard.org/post/gresham-college-lecture-on-algorithms