Guinness: The 250 Year Quest for the Perfect Pint Book by Bill Yenne. Joseph Conrad was wrong. The real journey into the Heart of Darkness is recounted within the pages of Bill Yenne’s fine book. Guinness (the beer) is a touchstone for brewers and beer lovers the world over. Guinness (the book) gives beer enthusiasts all the information and education necessary to take beer culture out of the clutches of light lagers and back into the dark ages. Cheers!