 In his role as professor of sculpture to the Academy, Weekes delivered a series of eighteen lectures which were published posthumously as "Lectures on Art", with a biographical introduction by his son, John Ernest Weekes.Art historian Benedict Read described the "Lectures" as "the most consistent and intelligent exposition of sculptural thinking in the Victorian era".In addition to conventional topics such as composition, beauty, style, taste, idealism "versus" realism, portraiture and Greek sculpture, Weekes devoted three lectures of the series to Sir Joshua Reynolds, and one to John Gibson and his mentors, William Behnes and Sir Francis Chantrey.