Prosperity is understood as a successful, flourishing or thriving condition: simply, a state in which things are going well for us. Every day the system in which we live tries to persuade us – via TV news, politicians' speeches, corporate pronouncements, inducements to consume and so on – that our prosperity is intimately linked to whether or not gross national product is growing and whether stock markets are riding high. These are the two main measuring sticks for the version of capitalism on which most countries base their economies today.Other ways of measuring prosperity, such as employment and savings, follow these two. If GNP – the total national output of goods and services – is in recession, then unemployment will rise, and that means growing numbers of unprosperous people without salaries. If stock markets are falling, that means falling pension values, and rising numbers of unprosperous people in retirement. So what's not to like about growth?Tim Jackson states the challenge starkly: "Questioning growth is deemed to be the act of lunatics, idealists and revolutionaries. But question it we must." And that is the core mission of this perfectly timed book. Had he published it before the financial crisis, he would probably have been dismissed as another green idealist, at best. But in the wake of the crisis, more people are questioning the primacy of growth at all costs. President Sarkozy, the Nobel-prizewinning economist Joseph Stiglitz and elements of the Financial Times's commentariat are among those now arguing that prosperity is possible without GNP growth, and indeed that prosperity will soon become impossible because of GNP growth. A new movement seems to be emerging, and this superbly written book should be the first stop for anyone wanting a manifesto....