A collaboration of 34 SABR members. This book includes biographies of all the umpires in the National Baseball Hall of Fame in Cooperstown, other notable arbiters, essays about professional female umpires, umpiring in the Negro Leagues, explorations of the baseball rules, umpire equipment, and much more.During the work on this book, we interviewed 56 major league umpires, former umpires, supervisors and umpire administrators, and others whose jobs cause them to interact with umpires. We hope to shed light on the umpiring profession past and present, the work involved on the field, and the arduous challenges and sacrifices it takes to become an umpire at the top of the profession. We have tried to look at the occupation from many different angles. No book can cover all facets of the job, but we hope to give readers a fuller appreciation of baseball and those charged with the integrity of the game. Contributions by David W. Anderson, Andy Andres, Mark Armour, Perry Barber, John Behrend, Dennis Bingham, Alan Cohen, Reynaldo Cruz, Kevin Cuddihy, Rob Edelman, Eric Frost, Larry Gerlach, Dennis Goodman, Leslie Heaphy, Harold R. Higham, Bob Hurte, Gil Imber, Rodney Johnson, Chuck Johnson, Stephen Johnson III, Bob LeMoine, Hank Levy, Bob Luke, Shaun McReady, Brian Mills, Bill Nowlin, Al Piacente, Bill Pruden, David Vincent, Bob Webster, Chris Williams, Herb Wilson.HALL OF FAME UMPIRESAl BarlickNestor ChylakJocko ConlanTommy ConnollyBilly EvansDoug HarveyCal HubbardBill KlemBill McGowanHank O'DayOTHER NOTABLE UMPIRESEmmett AshfordCharlie BerryAugie DonatelliTom GormanSteve PalermoBabe PinelliErnie QuigleyBeans ReardonRev. Dr. Crew Chief Ted BarrettChris GuccioneHISTORICAL DATARetired Numbers (and un-retired) from the Umpires Media Guide Honor Rolls of BaseballUmpires who Played and/or Managed in the Major LeaguesUmpire RecordsUmpires and No-HittersHistorical Timeline of Major League Umpiring from the Umpires Media Guide Umpires in PostseasonOTHER UMPIRES, OTHER PLACESUmpires in the Negro LeaguesThree Arizona League UmpiresOnce Upon a Blue Moon: A Love Affair with UmpiringAround the World of Umpiring by Clark G. "Red" MerchantLarry Young and International UmpiringCuban UmpiringUmpire Elber IbarraUmpiring in KoreaPROFESSIONAL WOMAN UMPIRESAmanda Clement: The Lady in BlueThe Stained Grass Window by Perry BarberYanet Moreno, the First Woman Umpire in Any Country's Major LeagueUmpire Schools: Training Grounds for the Guardians of the GameAn Umpire School DiaryA Visit to the Wendelstedt Umpire School in 2017The Evolution of Umpires' Equipment and UniformsTed Barrett's Chest Protector and Plate BrushWhat Do Umpires Do Exactly?When the Rules Aren't the RulesBaseball Q & A - Applying the Rules Umpire MechanicsUmpire Changes During A GameA History of Umpire EjectionsThrowing Out 17 Players In One GameDave Mellor, Director of Grounds, Fenway Park Dean Lewis, Umpires Room Attendant Chris Cundiff, Batboy Replay As An Umpiring ToolLarry Vanover -- the first umpire to make a call at the Replay Operations Center Rich Rieker, Director of Umpire DevelopmentUmpire Observer Kevin O'ConnorRoss Larson, Instant Replay CoordinatorReplay Behind the Scenes -- At the Ballpark Andy Andres, Field Timing Coordinator Dan Fish, Replay Headset Coordinator Jeremy Almazan, Replay Headset Coordinator John Herrholz, Ballpark Camera Technician Umpire AnalyticsThe Chest Protector