When Monsignor Thomas J. Green, professor at the School of Canon Law at The Catholic University of America, approached his seventy-fifth birthday and the fiftieth anniversary of his priestly ordination, his colleagues planned on offering him a fitting tribute in the form of a festschrift. Six people with different backgrounds, but all related to Msgr. Green on one way or another, have written a laudatio – a short congratulatory letter – in honor of Monsignor Green. No less than fifteen contributions on various topics by colleagues, canon law scholars, clearly relate and reflect upon the honoree's scholarly contributions to canon law. The topics are extremely varied, and illustrate how Monsignor Green has been or is active in nearly every area of canon law. Virtually every book of the Code of Canon Law is covered, if not directly, at least indirectly. While the book is a tribute to an eminent professor, the various scholarly contributions are unique pieces of scholarship. The authors of the laudatio are: John Garvey (President, The Catholic University of America); Andrew Abela (Provost, The Catholic University of America); Rev. Msgr. J. Brian Bransfield (General Secretary of the United States Conference of Catholic Bishops); Rev. Msgr. Ronny E. Jenkins (Dean, School of Canon Law, The Catholic University of America); Rev. Msgr. J. James Cuneo (Diocese of Bridgeport) and Sister Sharon Euart, RSM (Executive Director, Resource Center for Religious Institutes, Silver Spring, MD).