contributions by Barry Friedman ... [et al. contributions by Barry Friedman ... [et al.] contributions by Sarah Bertalan ... [et al. contributions by Iain Buchanan ...[et al. contributions by Julie Barten ... [et al. contributions by Tim Benton ... [et al. with contributions by Samantha Friedman ... [et al. contributions by Vanessa Arizmendi ... [et al. contributions by Dorothea Baumann ... [et al. contributions by Laurie Erin Barnes...[et al.