Carolyn Djanogly took the portrait of Ken Yeang on pages 16-17.
A former television documentary director, her first book of portraits, Centurions, was published in 1999.
Dean Hawkes, formerly a professor at the Welsh School of Architecture, is an architect, writer and teacher. He reviews Ruth Slavid's book, Wood Architecture, on pages 106-107.
Matthew Wells, whose drawings appear on this week's Sketchbook (page 122), is a structural engineer and director of London-based company Techniker.