| Catalog No. | Description | Price |
| 982 | 3¢ Washington & Lee University | 0.15 |
| 1065 | 3¢ Land Grant Colleges | 0.20 |
| 1093 | 3¢ Teachers of America (NEA) | 0.20 |
| 1201 | 4¢ National Apprenticeship Program | 0.13 |
| 1206 | 4¢ Higher Education | 0.15 |
| 1291 | 30¢ John Dewey | 0.70 |
| 1380 | 6¢ Dartmouth College | 0.20 |
| 1463 | 8¢ Parent Teacher Association | 0.20 |
| 1606 | 30¢ Schoolhouse (definitive) | 0.65 |
| 1824 | 15¢ Helen Keller & Anne Sullivan | 0.25 |
| 1833 | 15¢ Education in America, "Glow" by Josef Albers | 0.30 |
| 1861 | 20¢ Thomas Gallaudet | 0.45 |
| 2015 | 20¢ America's Libraries | 0.35 |
| 2106 | 20¢ A Nation of Readers | 0.35 |
| 3059 | 32¢ Smithsonian Institution | 0.50 |
| 3125 | 32¢ Helping Children Learn | 0.50 |
| 3390 | 33¢ Library of Congress | 0.50 |
| 3556 | 34¢ Mentoring (01/10/02) | 0.60 |
| 5100 | Jaime Escalante (FOREVER/47¢) (7/13/16) | 0.70 |
| 5191 | Robert Panara (FOREVER/70¢) (7/13/16) | 1.10 |
| 5241 | Father Theodore Hesburgh (FOREVER/49¢) (09/01/17) | 0.80 |
| 5242 | Father Theodore Hesburgh (FOREVER/49¢) Coil | 0.80 |
| 5279a | STEM (FOREVER/50¢), vertical STRIP of 4 (#5276-9) (04/06/18) | 2.70 |
| | US Postal Cards, entires | |
| UX150 | 15¢ Stanford University (09/30/90) | 0.30 |
| UX155 | 19¢ Old Red, Univ. of Texas (6/14/91) | 0.40 |
| UX157 | 19¢ Notre Dame, Admin Bldg. (10/15/91) | 0.40 |
| UX162 | 19¢ Waller Hall, Willamette University (02/01/92) | 0.40 |
| UX400 | 23¢ Ohio University (10/10/03) | 0.45 |
| UX405 | 23¢ Low Memorial Library, Columbia University (03/25/04) | 0.45 |
| UX533 | 27¢ Mount St. Mary's University (4/26/08) | 0.55 |