From Ann Kingstone’s “Lace Knits” book:
The typical top-down triangular shawl is given an updated look and functionality with the addition of two smaller triangular shapes at the front. These front lapels create a 3/4 square that allows the shawl to stay in place while showing off the nupps in the lace edging. Note the larger needle size is only used in the bind off.

Finished dimensions:
The finished shawl measures 152cm (60 inches) wide at the widest point and is 76cm (30 inches) deep at the centre, as shown in the blocking diagram from the book.

Yarn Information:
Photographed in Royal #613
3 skeins
687 yards