TITLE: Do there exist modern expositions of Klein's Icosahedron?
QUESTION [31 upvotes]: Reading Serre's letter to Gray
, I wonder if now modern expositions of the themes in Klein's book
 exist. Do you know any?

REPLY [2 votes]: You could also take a look at Section 1.6 of Finite Mobius Groups, Immersion of Spheres, and Moduli, by Gabor Toth.