I would like to learn about perverse sheaves.


I will be grateful if someone could recommend me a book with the following structure.


1. Introduction to basic homotopy theory (derived category and t-structure)
2. Introduction to sheaves
3. Introduction to perverse sheaves



A recommendation for a book on perverse sheaves
Pramod Achar is working on a book on perverse sheaves and applications in representation theory. It's a great book!


**EDIT (2021):** The book has now been published by the AMS: [Perverse Sheaves and Applications to Representation Theory](https://bookstore.ams.org/surv-258/).


