This document discusses various types of organizational development interventions. It begins by defining intervention and describing criteria for effective interventions. It then discusses factors that impact the success of interventions, including those relating to the change situation and target of change. Various intervention types are covered such as team interventions, inter-group and third party interventions, and comprehensive OD interventions involving the whole system. Structural interventions involving redesigning the organization are also outlined. Presentation sections provide details on specific interventions like team building, process consultation, and socio-technical system design.