The stamp lends itself very well in suggesting the knowledge of each subject; history, geography, biographies of famous characters and more generally in the deepening of every field of human science.
For this reason, the stamp has often found didactic use in both school and personal study.
Very active in this branch was the pedagogist Michele Giampietro, who also left a rich bibliography.
In particular, philatelia is very recommended in children in the age range between 6 and 14 years as a fundamental engine of knowledge that is simply presented as an interesting game.