Covering categories, homological algebra and sheaves, this book presents the general theory of categories and functors, emphasizing inductive and projective lim... » 

Covering categories, homological algebra and sheaves, this book presents the general theory of categories and functors, emphasizing inductive and projective limits. It also studies homological algebra, including additive, abelian, triangulated categories, and also unbounded derived categories, using transfinite induction and accessible objects. «