EN 
| Letter | Year |
|---|---|
| July 1952 – Vol. 33, No. 7 – Constructive Salesmanship | July 1952 |
| June 1952 – Vol. 33, No. 6 – The World Is Growing Better | June 1952 |
| May 1952 – Vol. 33, No. 5 – The Beauties of Learning | May 1952 |
| April 1952 – Vol. 33, No. 4 – On Finding Words | April 1952 |
| March 1952 – Vol. 33, No. 3 – Mental Health | March 1952 |
| February 1952 – Vol. 33, No. 2 – Writing A Report | February 1952 |
| January 1952 – Vol. 33, No. 1 – Our Prejudices | January 1952 |
| December 1951 – Vol. 32, No. 12 – Let’s Preserve Family Life | December 1951 |
| November 1951 – Vol. 32, No. 11 – Machinery, Tool of Production | November 1951 |
| October 1951 – Vol. 32, No. 10 – The Making of an Executive | October 1951 |