... Cambridge, MA 02138 . ... X-ray Astronomy Schools . In 2001 I co-founded the US X-ray astronomy school, a series of workshops which have been held on an as-needed basis through 2011; since then the community has seemed to be sufficiently familiar with Chandra and XMM-Newton that the need was lower; it is possible they will restart with the launch of Hitomi. ... As a lecturer at COSPAR workshops, I have taught at X-ray Astronomy schools in Brazil, India, South Africa, Egypt, and Argentina. ...