Scales
| April 15, 1959 | Emotional Tone Scale Expanded | L. Ron Hubbard writes HCOB 'Emotional Tone Scale Expanded'. | |
| April 22, 1959 | Old and New Reality Scale | L. Ron Hubbard writes HCOB 'Old and New Reality Scale'. | |
| October 13, 1959 | DEI Expanded Scale | L. Ron Hubbard writes HCOB 'DEI Expanded Scale'. | |
| May 23, 1961 | Prehav Scale Revised | L. Ron Hubbard writes HCOB 'Prehav Scale Revised'. | |
| June 17, 1961 | Primary Scale Amended | L. Ron Hubbard writes HCOB 'Primary Scale Amended'. | |
| November 23, 1961 | Auxiliary Prehav 3D Scale | L. Ron Hubbard writes HCOB 'Auxiliary Prehav 3D Scale'. | |
| March 6, 1966 | Statistic Graphs, How to Figure the Scale | L. Ron Hubbard writes HCOPL 'Statistic Graphs, How to Figure the Scale'. | |
| October 26, 1970 | Obnosis and the Tone Scale | L. Ron Hubbard writes HCOB 'Obnosis and the Tone Scale '. | |
| June 2, 1971 | Breakthrough, PR and Production, Tone Scale Surveys | L. Ron Hubbard writes HCOPL 'Breakthrough, PR and Production, Tone Scale Surveys'. | |
| September 25, 1971 | Tone Scale in Full | L. Ron Hubbard writes HCOB 'Tone Scale in Full '. | |
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