In honour of December, which we all know as the month of charity appeals, Myron will present the research he has done on the most cost-effective charities. This doesn’t mean “1lowest percentage of money spent on administrative costs”, it means “most good” done per dollar, for various definitions of ‘good”’. Building on his earlier presentation on Effective Altruism, this will be a deep dive into Givewell’s recommendations, as well as other sources of information on effective philanthropic opportunities.