Scientology Chronology - May 1959
| April 30, 1959 | Confrontingness | |
| April 30, 1959 | Electronic Phenomena of the Mind | |
| April 30, 1959 | HAS Co-audit | |
| April 30, 1959 | Additional Staff Auditors | |
| April 30, 1959 | Long-Distance Program | |
| May 1, 1959 | HAS Certificates | |
| May 3, 1959 | Solution to Solutions | |
| May 4, 1959 | An Affinity Process | |
| May 4, 1959 | How to Write a Curriculum | |
| May 5, 1959 | Policy on SECEDs and Hats | |
| May 7, 1959 | New Process | |
| May 8, 1959 | An Undoable Command | |
| May 12, 1959 | Clearing | |
| May 13, 1959 | HCO Book Administrator Hat | |
| May 13, 1959 | Second Lecture on Clearing Methodology | |
| May 14, 1959 | A Staff Post | |
| May 14, 1959 | Clearing Technology | |
| May 14, 1959 | HCO Administrator | |
| May 19, 1959 | The Theory of Clearing | |
| May 20, 1959 | Clearing, Practice Of | |
| May 20, 1959 | Know to Mystery Straightwire for Extreme Cases | |
| May 21, 1959 | Clearing Process-Special Cases | |
| May 21, 1959 | "The Symbol * on All Despatches..." | |
| May 21, 1959 | HCO Monies and Book Stocks | |
| May 21, 1959 | HGC Allowed Processes and ACC Processes as of 21 May 1959 | |
| May 22, 1959 | Advertisement for Field in CERTAINTY, ABILITY, etc.-Minor Issues | |
| May 22, 1959 | Central Organization Efficiency | |
| May 26, 1959 | Clearing: Theta Clear Procedure | |
| May 26, 1959 | Man Who Invented Scientology | |
| May 26, 1959 | To Department Heads | |
| May 26, 1959 | What an Executive Wants on His Lines | |
| May 27, 1959 | Clearing: General Processes | |
| May 28, 1959 | Clearing: General Cases-Communication Processes | |
| May 28, 1959 | New HCO WW Dept | |
| May 28, 1959 | Promotional Writing Fund | |
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