Beer is the world's favourite alcohol and it has changed out of all recognition in the 21st century. The country-by-country sections will give more detail of the changes but the introduction will lead readers into the world beer revolution by describing the enormous power and stretch of global brewers - with AB InBev accounting for one third of all beer made and consumed - with the counter culture of the world-wide craft movement. From the US to Australasia, charting the beer scene in every country, the key players and the styles available.