I have been learning intersection homology and perverse sheaves in the following way. I started by reading the first $7$ chapters of Kirwan and Woolf's book 
[http://www.amazon.com/Introduction-Intersection-Homology-Theory-Edition/dp/1584881844](http://rads.stackoverflow.com/amzn/click/1584881844).


Then, I read chapter $8$ of the book <http://www.math.columbia.edu/~scautis/dmodules/hottaetal.pdf> which introduced the theory of perverse sheaves using the language of $t-$ structure. After reading the abstract construction of the category of perverse sheaves for an algebraic variety or analytic space, I hope to see examples of calculating the perverse sheaves for spaces with easy stratification, such as $\mathbb{CP}^n$. Could anyone please provide some interesting examples? Thanks!



Examples of calculating perverse sheaves on algebraic varieties with easy stratification
Geordie Williamson has a very nice set of notes on perverse sheaves:
<http://people.mpim-bonn.mpg.de/geordie/perverse_course/lectures.pdf>
it deals with some examples on curves (section 10).


You can also look at De Cataldo and Migliorini's paper (section 2.2):
<http://www.ams.org/journals/bull/2009-46-04/S0273-0979-09-01260-9/S0273-0979-09-01260-9.pdf>


