Leadership Directories Inc., known for its leader-infused Yellow Books, is moving to a new D.C. office space. The 41-year-old company signed a 10-year, 4,814-square-foot lease at 1667 K St. NW. The firm expects to move from 1001 G St. NW, its 4,042-square-foot home since 2000, in the first quarter of 2011. ...The shift from Metro Center to the Farragut West building will cut its rent by about $15 per square foot each year. Studley Inc.â??s Jeff Shrago, executive managing director, and Chase Bourdelaise, associate, represented the tenant. Peter McGill of CB Richard Ellis Group Inc. represented the landlord, James Campbell Co. Inc.