The Power of the True Love Knot is an album by Shirley Collins. The theme of this collection of songs is "the idea of true love as a power outside society's control", as Shirley writes on the liner notes. If the first track sounds slightly like "Eleanor Rigby", this is because plays cello on both of them. Two other guests are Mike Heron and Robin Williamson from The Incredible String Band. The relationship bore fruit on Shirley's next album. Anthems in Eden (1969) contains "God Dog", a song written by Robin Williamson.