Introduction In this paper I will be aiming to cover the following areas. Firstly an overview of the fundamentals behind the cognitive theories of motivation, focusing on three main theories - Equity theory, Expectancy theory and Goal setting theory. Within these theory bases I will outline some of the developmental research that has been occurring, particularly those studies which have added empirical evidence to consolidate or expand on the basic theories. Secondly I will show some practical applications of these theories and evidence of how successful they have been or could be within an organisational environment. Finally a short comment on the adaptability of these models