5 star for the content, yes it is cheaper Indian edition. Don't expect to be colorful and off quality pages. It looks cheap but still giving 5 star because of its content and availability in 10%of original quality print price.
Those who love reading won't mind the quality of paper and black and white images.
About Book: Author know how to convey things in simple manner, just 2 days and already 50 pages done. I am loving it.
Go for it if you want to have a deep diver in there world of DL....