Since the FT's critique of Piketty's master work I have been trying to get up to speed with what he is saying. The book is 950 pages long. Branko Milanovic ends his review saying:
When reading Piketty’s book, it is indeed hard to go back to thinking about anything else: one gets totally absorbed in it.This is perhaps the best compliment that the author of an almost thousand page long economics book can ever expect to get. Don’t take this book on vacation: it will spoil it. Read it a home.
Milanovic has worked until recently on inequality at the World Bank as their lead economic researcher and is now a visiting prof at City University of New York (CUNY).
There is a really useful short review by John Cassidy in The New
Yorker. There is also a blog by Cassidy
that present Piketty's work in six compelling diagrams.
A cut-and-paste review of reviews is available here.
See also the Wikipedia page on the book here for other review links.