This article describes and reviews the "Behavior Rating Inventory of Executive Function, Second Edition" (BRIEF2; Gioia, Isquith, Guy, & Kenworthy, 2015). Published by PARInc., it is an updated individually administered rating scale of executive function (EF) for children and youth, aged 5 to 18 years. Primarily used in clinical, psychoeducational, and research settings, the BRIEF2 evaluates everyday behaviors associated with EF in home and educational environments. The BRIEF2 kit consists of the Professional Manual; Fast Guide (which provides targeted information about the measure's composition, administration, and scoring); 25 of each of the Parent, Teacher, and Self-Report forms; and 25 of each of the Parent, Teacher, and Self-Report Scoring Summary/Profile forms. The manual is comprehensive and well structured, beginning with an overview of the measure and its history, and describes administration, scoring, and interpretation of the measure. Revision goals are outlined and evidence of the measure's psychometric properties is provided. Overall, the BRIEF2 provides a quick, effective, and efficient way to examine EF. Its construct breakdown, test standardization, and short completion time make it a useful measure for both clinical and research settings. Although the measure does contain several limitations inherent in most rating scales, it remains both useful and recommendable.