I don't know if this is a chapter out of a book, or if this is a lecture material, or what, but it has a rather comprehensive coverage of photoionization, Auger, and photoemission in solids. I also don't know how long the document will be available (web links come and go, it seems). So if this is something you're interested in, it might be something you want to download.
At the very least, it has an extensive collection of references, ranging from Hertz's discovery of the photoelectric effect, to Einstein's photoelectric effect paper of 1905, all the way to Spicer's 3-step model and recent progress in ARPES.
Zz.
