Developed by Dr. Paul Pimsleur in the 1960s, the program is built on four revolutionary pillars of cognitive psychology:

Here is a story of a learner's journey using the method: The Story: The Commuter’s Secret

It was developed by Dr. Paul Pimsleur, a linguist who discovered that people forget new information in predictable patterns. His method counters that forgetting curve by reintroducing words and phrases at scientifically spaced intervals.