. . "ISBN 0-86304-072-1 (paperback edition)" . "39505551" . . . "Knowing How to Know"@en . "Knowing How to Know is a book by the writer Idries Shah published posthumously by Octagon Press in 1998. A paperback edition was published in 2000.Shortly before he died, Shah stated that his books form a complete course that could fulfil the function he had fulfilled while alive. As such, Knowing How To Know can be read as part of a whole course of study."@en . .