The last week of June I attended a summer school on derived categories in Nantes. Really interesting summer school, and a truly brilliant city. During the long and boring train ride home I decided to TeX up my notes for Henning Krause's lecture series on stratification of triangulated categories. The result of that is now proofread and corrected (thanks Henning!), and can be found on my personal webpage (or his, or hopefully the summer school's page soon).