Al Clark is a former professional baseball umpire who worked in the American League from 1976 to 1999, and throughout both Major Leagues in 2000 and 2001. Clark umpired 3,392 major league games in his 26-year career. He umpired in two World Series (1983 and 1989), two All-Star Games (1984 and 1995), five American League Championship Series (1979, 1982, 1987, 1992 and 1999), and three American League Division Series (1981, 1996 and 2000). In 2001, Clark was fired by Major League Baseball after downgrading his first class airline tickets to economy class, thus either pocketing funds by selling extra tickets or to gain additional airline tickets for unapproved personal travel. In 2004, he was sentenced to four months in jail and four months on house arrest after a memorabilia scheme resulted in a federal mail fraud conviction.

This copy of "Called Out But Safe: A Baseball Umpire's Journey" was signed by authors Al Clark and Dan Schlossberg. This book includes a Great Moments COA.