I have only the epub and pdf version of the book, I got it for 20 $ in manning discount. And I can not imagine why someone would buy the real paper version in these days -- why kill trees for it, waste energy for printing and generate waste? (Of course for some books, which you study hundreds of hours paper is fine still.)
Ints are not converted to cint automatically by default. On a 64 bit system Nim's int is 64 bit, while cint may be only 32 bit, so you would lost information. You may use a converter if you really want automatic conversion. But I generally use cint when that data type is needed for a C library.
