Knowledge & Education Stamp Thematics on WOPA+
Books
| Michel Vaillant |
| Issued: 22.09.2025 |
| ›France |
| The Wombles Trail |
| Issued: 23.07.2025 |
| ›Alderney |
| Thematic Book |
| Issued: 30.04.2025 |
| ›Portugal |
| Postage Stamp Book in Latvian |
| Issued: 03.04.2025 |
| ›Latvia |
| 180 years of the Serbian Reading Room Laza Kostic |
| Issued: 24.03.2025 |
| ›Serbia |
| Magical Island |
| Issued: 19.03.2025 |
| ›Aland Islands |
Education
| Slovene Proverbs and Sayings |
| Issued: 21.11.2025 |
| ›Slovenia |
| Slovene Poetry - Anton Askerc |
| Issued: 26.09.2025 |
| ›Slovenia |
| The Hungarian University Of Sports Science Is Celebrating Its Centenary |
| Issued: 17.09.2025 |
| ›Hungary |
| Urban World Heritage Sites - Alcala de Henares |
| Issued: 08.09.2025 |
| ›Spain |
| Do you like Pi |
| Issued: 25.08.2025 |
| ›Belgium |
| 50 Years of the University of Maribor |
| Issued: 14.07.2025 |
| ›Slovenia |