From the book:

Versatility is the key to this stylish khaki sundress. Wear it with a sunhat for a day at the beach or don it solo for a cocktail party. Inspired by a Barbara Walker stitch pattern, the lace has a unique dimensionality that only looks difficult to make. The shaping is achieved with just changing the needle size. Knit in my favorite Karabella Vintage Cotton, the piece is breathable enough to beat the summer heat- just be sure to wear a slip underneath.