This is a book everyone must read - a historical account of China's Great Famine 1958-1962 wholly created by the biggest mass-murderer in human history - the Communist ideology.
One reviewer wrote: "Tombstone is the most important, most exhaustive work ever written about the tragedy. It opens a new window on what happened with research we’ve never had access to, bolstered by first-hand accounts by Chinese memoirists."
A review from the Boston Globe (here) is worth reading as well.