This article provides a summary of work done by Raven and his colleagues on bases of power. It ranges from the initial work in 1959 of French and Raven through decades of follow-up work, and ties the work to that of others doing work on power bases. After the summary, the author responds to a series of questions that probe the work in greater depth, allowing explication of much of the thinking underlying and leading to publications of Raven and colleagues that are well known to social psychologists. While ours has been described as one of the most widely cited analyses of social power, many Analysis of Social Issues and Public Policy readers may not be familiar with its development since our original statement was published in 1959. It ther...