contributions by Laurie Erin Barnes...[et al. contributions by Barry Friedman ... [et al. contributions by Barry Friedman ... [et al.] contributions by David Clarke...[et al. contributions by Julie Barten ... [et al. contributions by Marie Godet...[et al. contributions by Mieke Albers...[et al. contributions by Patrick Kinmonth...[et al. contributions by Sarah Bertalan ... [et al. contributions by George Hargreaves ... [et al.