"Natural horsemanship" is a more recent term, originating in the western United States, and not coming into popular use until around 1985. Its origin is widely attributed within the movement to Pat Parelli, who wrote a book using the phrase in the title. The term became linked to "horse whispering" in the 1990s, when the popularity of Nicholas Evans' book "The Horse Whisperer", and the later Robert Redford film of the same name, promoted popular awareness of natural horsemanship. However, some trainers linked to the movement, such as Mark Rashid and Tom Moates, have stated their discomfort with the term "natural horsemanship."