Publishers in most cases preferred to omit their names, or assume pseudonyms...many were also published by Spridgeon himself, distributed by hand in the case of pamphlets and leaflets, or sent anonymously in the case of books and technical tracts to reviewers and people he believed, "might like to consider another way of thinking". Therefore, publishers are only mentioned by name if there is a degree of certainty.

Most of the editions mentioned below are out of print, but in the last decade, many have been distributed in large numbers through a variety of private and 'underground' channels. 1932* "Echoes In The Body-an investigation into Inner Space" His University thesis with additional notes and supplements. 1934* "Rhythms and Politics" Short polemic printed as a handbill. Re-printed in "The Morality of Sound". "BANG! - An Open Letter to Edward Moolenbeek" First printed in Moolenbeek's "Science Review", later as a small pamphlet. 1939* "The Not-Medical Uses of Microphones" Lengthy technical tract which caused the infamous investigations into his activities later the same year. 1940* "The Locations Of Detached Sounds" The publication of the results of various experiments carried out by Spridgeon. 1942* "lmplications" A slim volume of a combination of instruction in various procedures and theoretical insights that were to form the basis of future work. "Suppressed Noise" Spridgeon's analyses of conventional procedures in the broadcast and performance of music and speech. 1943* "The Survival of Vibrations" Mainly technical book in collaboration with Edward Moolenbeek. 1944* "Inherent Aggression-A Meditation" A major development of the areas first outlined in "Rhythms and Politics", published by Ford & Hunter, subsequently withdrawn the same year. "The Morality of Sound" Widely regarded as the pinnacle of Spridgeon's achievement. The subject of much scientific and philosophical discussion, it's publication was accompanied by many invitations to lecture at various universities and medical societies. 1945* "The Application of Some Theories" Highly influential instructional booklet accompanied by further explorations into the ramifications of his own work.

Early ionisation recordings being made by Robert Spridgeon for ROBOL Sound Recordings, 1957

1946* "Notes: 1942-1944" Published by Moolenbeek whilst Spridgeon underwent the first of his many long trips into hospital. By this time, the gradual discrediting o fSpridgeon's work had begun in real earnest no doubt fuelled by his inability to reply at this time. 1948* "Curing Without Killing" Edited in the previous year from his hospital notes, the book caused a huge outcry from the medical profession. 1949* "The Use of Silence" Transcriptions of various lectures. "A Body of Sound" The publication of this important book heralded the first of the well-known court cases. 1951* "Controller of the Instrument" A series of discourses dictated in four weeks. The publication of this book was accompanied by the sending of copies to major public figures, reviewers etc, by Spridgeon's now growing mass of followers. 1953* "The Malevolent Ear, The Obedient Noise" A massive collection of opinions, experiments, designs and instructions published at his own expense in three volumes, perhaps his most controversial opus. 1955* "Three Lectures" A long-playing record and complementary booklet setting out the more commonly applicable techniques in immediate form. "What For?" Detailed technical information on the setting up of apparatus for various uses as outlined in "Three Lectures". 1956* "The Case of Robert Spridgeon" Written by Arnold Hams, a follower and student of Spridgeon. This large book was intended to redress the balance of popular opinion in the hope of making his appeal against his prison sentence more effective. Unfortunately it failed and Spridgeon was sentenced to the maximum possible for his offence. 1962* "Collected Correspondence" Published by the now very ill Moolenbeek, many copies were impounded by the Government. "Hear Spridgeon Speak" Long-playing record of Spridgeon reading his work. 1963* "Reasoning Noise" His last book, written partly in prison, and completed posthumously by Harris after his death in May of that year. ll working and issuing recordings at the time of writing.

To avoid prosecution, many of Spridgeon's works were issued after his death under various pseudonyms and these were largely hitherto unpublished notes extant from .the estate of Moolenbeek, or compilations of various sections of above listed works. Various attempts have been made to realise and implement the techniques and philosophy of Spridgeon's work, most notably by The Hafler Trio in England, still working and issuing recordings at the time of writing.