This week the co-author of my math for social scientists text, Dave Siegel , released a series of video lectures to accompany the text. They make self study very feasible, so if you are thus inclined, please check them out.

Siegel’s YouTube page with lectures to accompany: A Mathematics Course for Political & Social Research
Dave maintains a page with all sorts of useful links for the text.
This prompted me to wonder how the book has been doing wrt sales on Amazon.com. So I visited their Author Central site and was able to eyeball a few fun representations. I really like the trends in author rank for the Kindle edition. The third figure provides sales figures, which are much more tangible than author rank.
@WilHMoo