Jonathan E. Martin taught at and led schools in California and Arizona from 1989 to 2012; over the past decade he has been a writer, school consultant, and professional development provider to more than a hundred schools and thousands of educators in the U.S., Canada, Mexico, and New Zealand. His affiliations have included EdLeader21, OECD PISA, NWEA, NAIS, Mastery Transcript Consortium, Blackbaud, Enrollment Management Association, CWRA, and Think Through Math. He is the author of Reinventing Crediting for Competency-Based Education (Routledge Press, 2020), as well as scores of e-books, special reports, and white papers over the past 10 years. He currently directs professional learning for a global not-for-profit educational organization.