Some inspiring Math readings.

A. Grothendieck, "Recoltes et Semailles".
A. Grothendieck, "Le Clef des Songes".
P. Deligne, J.S. Milne, "Tannakian Categories".
J.S. Milne, "Lectures on Etale Cohomology".
G. Vezzosi, "What is a Derived Stack?".
J. Lurie, "Higher Topos Theory".
B. Fantechi, "Stacks for Everybody".
W.G. Dwyer, J. Spalinski, "Homotopy Theories and Model Categories".
I. Moerdijk, "Introduction to the language of Stacks and Gerbes".
B. Toen, "Stacks and Non Abelian Cohomology".