In this 2013 article, Diamond, an expert in Executive Function, particularly in children, explains, in-depth, her conception of Executive Function, including inhibitory control, working memory, cognitive flexibility, including the relationships between them, representative psychological tasks used to assess them and their development. She also delves into what she names a “higher order executive function:” relational/logical reasoning or fluid intelligence, as well as other topics related to executive function, including how training and practice can improve executive function.