The James Halliday Wine Companion is a comprehensive guide to Australian wines, authored by renowned wine critic James Halliday. It features detailed reviews and ratings of thousands of wines from various regions across Australia, helping consumers make informed choices. In addition to wine ratings, the Companion includes information on wineries, grape varieties, and wine regions. It serves as a valuable resource for both wine enthusiasts and industry professionals, offering insights into the best wines available each year and highlighting emerging trends in the Australian wine market.