Thatcher's autobiography has taken our fifth and final spot. Of course, there is a case for the Iron Lady's volume to be placed higher -- think what you like of her, but her premiership was certainly historical, and a turning point for the country.
Yet the consistent critiques of the style in which it is written (or lack of one) and the fact that some of the other memoirs here have more of a "bombshell" impact, confine it to the bottom spot.
Julian Glover delivers a succinct summary:
The two fat volumes that record the rise and fall of Britain's only female prime minister lack the excitement of her premiership. They read like they were produced by committee -- effectively they were, with the bulk of the writing done by two assistants. Some cynics doubt she has even read parts of her books. Nonetheless they were both political sensations when they were published, with criticism in the second volume playing a large part in John Major's extraordinary decision to resign and fight his own party for the leadership in 1995.