Erdos is a site with educational problem sets of increasing difficulty for learning about Network Science.

If you're curious about NetSci, but don't know where to begin, you can read about it here. If this exciting area of science sounds interesting, come try out Erdos and let us know how what you think.

If you want to learn how to use this site, read the how to. If you want to dive right in, see our problem sets here.