Kristine Mraz is coauthor - with Christine Hertz - of Kids First from Day One, which provides a practical blueprint for increasing the child-centeredness of your teaching practice. She and Christine previously teamed up for the bestselling A Mindset for Learning (coauthored with Christine Hertz), which provides practical and powerful strategies for cultivating optimism, flexibility, and empathy alongside traditional academic skills. Kristi has also coauthored - with Alison Porceli and Cheryl Tyler - Purposeful Play, the book that helps you make play a powerful part of your teaching. She and Marjorie Martinelli wrote Smarter Charts and Smarter Charts for Math, Science, and Social Studies ?to get the most out of this classroom staple. Their popular blog Chartchums keeps teachers in touch with ongoing and relevant classroom issues and ways to use charts as a support. Chartchums is also on Facebook and on Twitter @chartchums! Kristi is a recent transplant to southern California, where she will be writing and consulting until the classroom calls again. You can follow all of her adventures on Twitter @MrazKristine or on her blog, found at kristimraz.com.

Alison Porcelli is coauthor (with Kristi Mraz and Cheryl Tyler) of Purposeful Play. She also coauthored A Quick Guide to Boosting English Acquisition in Choice Time, with Cheryl. Alison is Vice Principal at PS 59 in Manhattan and worked for eight years as a senior staff developer at the Teachers College Reading and Writing Project at Columbia University, where she consulted nationally and internationally to bring exceptional literacy practices to schools. Before that, she was a kindergarten teacher. Alison's playground is in Bedford, NY where she resides with her husband, Tom, and son, Preston.

Cheryl Tyler is coauthor of Purposeful Play with Kristi Mraz and Alison Porceli. She has worked extensively in New York City schools as a kindergarten teacher, staff developer, consultant, and the principal of PS 277 in the South Bronx. She is currently the director of Reading Rescue at Teachers College Reading and Writing Project. Cheryl and Alison are coauthors of A Quick Guide to Boosting English Acquisition in Choice Time, K-2.