This guide outlines the scope and potential roles an elective can fulfil in undergraduate medical training, and identifies ways to maximise learning opportunities, including within global health. The types of educational activity available for electives range from meeting individual educational need through to exploration of potential career paths, with many potential factors influencing choice.Key areas of organisation underpinning a successful elective before, during, and after the placement include developing clarity of the intended educational outcomes as well as addressing practicalities such as travel and accommodation. Risk management including the implications for the participating schools as well as the student and their elective supervisors is crucial. This guide would not be complete without some discussion around ethics and professional conduct during an elective, with consideration of the impact of elective placements, particularly in low-middle income countries.137 words