Seventeen experts on history and arts deliver brief lessons on their favorite subjects, considered the most relevant to cover nine hundred years of Portuguese culture. The camera shows from a distance, or in minute detail, the monuments or art pieces considered, or even the texts discussed by the narrators, reenacted on stage or recited by actors.
| Directing | Manoel de Oliveira | Director |
| Camera | Elso Roque | Director of Photography |
| Sound | Joaquim Pinto | Sound |
| Sound | Vasco Pimentel | Sound |
| Editing | Manoel de Oliveira | Editor |