Lida Baker is the author of more than two dozen print and digital books for students and teachers of English as a second or foreign language. Now a full-time author and editor, she previously taught ESL at the American Language Center, University of California, Los Angeles Extension. She lives in Los Angeles. Kristin Sherman has been an ELT teacher, ... Read moreteacher trainer, consultant, and course book author for more than 15 years. She regularly conducts teacher training workshops throughout Latin America and Asia. Kristin is co-author of several ELT series and has written print materials and online content for many other publications. She holds an M.Ed. in TESL from the University of North Carolina, Charlotte. Show Less