Ask HN: What is a good “My First Reader” for source code?

I am a hobbyist programmer; I have programmed a few very simple 2d games, a 3D texture mapped terrain renderer, and some other small utilities all in C for a bit of context. I am looking for some good, and frankly easy, very small projects to read for an idea how "real programmers" engineer software and to simply learn. I am not all that interested in fancy, tricky algorithms or anything, just coherent and well engineered (and easy to digest) software. Any ideas where to start?