Book excerpt: In this tasty little volume, wine and spirits expert Kara Newman offers 42 fail-safe recipes for making great cocktails in batches, proving that no host need ever spend the evening trapped behind the bar. With advice on measuring and conversion techniques, helpful hints on balancing flavors, and plenty of tips for preparing ahead of time, the delights of drinks usually prepared individually are easily duplicated on a larger scale. Enriched with 24 color photographs, this useful book makes a winning gift for summer entertaining.