A Mother's Reckoning: Living in the Aftermath of Tragedy is a 2016 memoir by Sue Klebold, the mother of Dylan Klebold. Along with Eric Harris, Dylan was one of the perpetrators of the Columbine High School massacre in 1999. The book details the childhood and teenage years of her son, and what she says are signs she missed that Dylan was suffering from clinical depression. The book also examines her grieving process in dealing with the fallout of the massacre.

Eric David Harris and Dylan Bennet Klebold were American high school seniors who perpetrated the Columbine High School massacre at Columbine High School on April 20, 1999 in Columbine, Colorado. Harris and Klebold killed 12 students, one teacher, and wounded 24 others. After killing most of their victims in the school's library, they died by self-inflicted gunshot wounds. At the time, it was the deadliest high school shooting in U.S. history.