This book is an act of courage on the part of its author and its publisher. Ever since I wrote The Constant Gardener, I have received approaches, and sometimes complete typescripts, from investigative writers determined to lift the veil on the darker side of the world's most profitable trade: the pharmaceutical industry. Yet not one of the authors, so far as I was ever aware, saw his project realized. And if, months later, I delicately inquired why not, the anwer, how ever wrappeed up, was always the same: too risky. Using clear, accessible language and carefully annotated case histories, Sonia Shah has struck a blow for alla who dream of harnesssing the huge power for good that is invested in the pharmaceutical industry, and of seeing its products made available to those who need them, and of curtailing the greed that drives its worst practices.