Space Captain Katsura's Academic Blog (and more!)

So, my Ph.D asked me to read through literature to see what topics are more interesting to me, so I could narrow down my potential MA thesis field, and apart from Polish sources he recommended me to find John the Lydian's On the Magistracies of the Roman Constitution, but unfortunately closest physical copies I could find are in North America and Australia and I don't feel ordering them just to read them since it is only recommended lecture, not obligatory. Do you have any suggestions on a good ...