Tim Seldin is the President of the Montessori Foundation and Chair of the International Montessori Council. He is a co-founder of the Center for Guided Montessori Studies and Co-Director of its Montessori School Leadership Certification Program.

His more than forty years of experience in Montessori education includes twenty-two years as Headmaster of the Barrie School in Silver Spring, Maryland, which was his own alma mater from age two through high school graduation. Tim was the co-founder and Director of the Institute for Advanced Montessori Studies, the Center for Guided Montessori Studies, and currently also serves as the Head of the New Gate School in Sarasota, Florida.  He earned a B.A. in History and Philosophy from Georgetown University, an M.Ed. in Educational Administration and Supervision from The American University, and his Montessori certification from the American Montessori Society. Tim Seldin is the author of several books on Montessori Education, including his latest, How to Raise An Amazing Child the Montessori Way, The Montessori Way with  Dr. Epstein, The World in the Palm of Her Hand, Building a World-class Montessori School, Finding the Perfect Match – Recruit and Retain Your Ideal Enrollment, Master Teachers – Model Programs, Starting a New Montessori School, Celebrations of Life.

Tim is the father and step-father to five former Montessori students, and the grandfather of a new generation of Montessori students. He lives on a small vineyard north of Sarasota, Florida with his wife, Joyce St. Giermaine, their many horses, dogs, and cats.