This is not a recipe book. It is a database of ingredient information that should assist the home or craft brewer in creating their own recipes in order to attempt the replication of commercial beers. Instructions on how to convert the supplied ingredient information into recipes customised to the brewer's own equipment and technique are provided. This book also provides inspiration to brewers wishing to experiment with different ingredients since it gives an interesting insight into how professional brewers have used them in their own brews. Finally, this book should also be of interest to the discerning beer enthusiast who is curious about what goes into their favourite drink. This second edition provides substantially more data than the well-received first edition.