The Wolf Hall trilogy. Its obviously not to be taken as historical fact and it omits things like Cromwell blocking Anne Boleyn from starting state schools and other good works for the poor because he wanted to bribe noblemen, I guess because Mantel wanted to make Cromwell more of a hero than he was at times.

However, if you treat it as alternative history its a good, if slow look at that time period. If you cant be arsed to read the books then the TV series is really good, even if it rushes the end a little.