Tasha Percy, senior editor. Helen Fewster, senior editor. [Gina Tsarouhas, senior editor. Heather Kissock, senior editor [Gina Tsarouhas, senior editor.] Ray Hemachandra, senior editor. Thomas Nachazel, senior editor Judith M. Blohm, senior editor Uta Grosenick, editor. Gareth Cook, series editor.