Stuart Cohen and Julie Hacker are an Evanston, Illinois-based award-winning husband-and-wife architectural team whose complementary talents are presented in this first monograph of their residential work.   Their elegant body of work is concentrated in the suburbs along Chicago's leafy North Shore. Informed by both modern and classical principles, their traditional-looking homes inhabit these genteel neighborhoods like fine pieces of furniture. The completed residences seem effortless but the designs behind them tend to be quite complex. Certain elements appear in each of their houses, including classical axial layouts, custom trim that organizes spaces, views through glass cabinetry, and French doors and interior windows that visually interconnect rooms.   For more than 25 years Cohen and Hacker have worked with their clients to understand the way they want to live, creating houses that combine contemporary living spaces with traditional architectural elements and details.