It was in the Scottish Café, however, that the famous Scottish Book consisting of open questions posed by the mathematicians working there came into being. Kuratowski (and Steinhaus) sometimes joined their colleagues in the Scottish Café but he had left Lvov before the mathematicians began writing down the problems in the Scottish Book.
Ito ay sa Scottish Cafe, gayunpaman, na ang mga bantog na Scottish Book na binubuo ng mga bukas na katanungan sa pamamagitan ng posed ang mathematicians nagtatrabaho doon nagmula sa pagiging. Kuratowski (at Steinhaus) paminsan-minsan ay sumali sa kanilang mga kasamahan sa Scottish Cafe ngunit siya had kaliwa Lvov bago ang mathematicians ay nagsimulang pagsulat down ang mga problema sa Scottish Book.