Author Eric Warner earned a degree in master brewing from Weihenstephan one of the oldest breweries in the world and also one of the best places in the world to learn about brewing German Beer. For the past 20 years he has been brewing German style beer professionally in Colorado. The author's training and experience show throughout the book. He writes one of the best chapters on the history of the beer and how it came to be the Kolsch we know and love of any book in this series. His discussion of the sensory profile engages the avid drinker yet contains enough detail for the home brewer. He follows this with a chapter on brewing Kolsch that demonstrates his training and technical expertise. He follows up with an enjoyable chapter on enjoying Kolsch in Cologne, its native city. For the professional and home brewer he also provides recipes. Warner includes appendices on the breweries if Cologne and the city's food. This is easy enough to follow for the average beer fan yet provides enough information for the professional brewer to tackle the style. His discussion of Cologne might warrant taking this book along on your next trip to Europe.