Cover design for O poråo (“The basement”), using Mudstone Sans and Salted, both by PintassilgoPrints. About the book (translated from the Brazilian Portuguese):

A rescue inside the most dangerous building in Latin America. This is Samantha's objective in The Basement, a gamebook set during the Brazilian civil-military dictatorship. Citing real characters and situations experienced during the armed struggle during the resistance to the military regime, the narrative fluidly and emotionally interweaves fact and fiction.

The story takes place shortly after the signing of AI-5, the most brutal period of the era, when torture and violence against government opponents were institutionalized. Cecília was captured in an ambush by DOPS agents and taken to a police station where detainees are held in degrading conditions. Samantha immediately decides to storm the DOPS building. It's up to the player-reader to determine how impossible this rescue mission is, and to do so, they'll need to make choices and roll dice, relying on both their wits and luck—and perhaps rewrite the course of history.

Illustration by Carlos Sekko.

The synopsis is set in Bookmania, with all-caps Helvetica Condensed for the URLs and social media handles.

Malba Tahan is the alter ego of Júlio César de Mello e Souza, a celebrated Brazilian mathematician looking for a way to bring some of the mysteries and pleasures of mathematics to a wider public. Tahan’s publication The Man Who Counted: A Collection of Mathematical Adventures (1938) presents the adventures of Beremiz Samir, who takes the reader on “a journey in which, time and again, Samir summons his extraordinary mathematical powers to settle disputes, give wise advice, overcome dangerous enemies, and win for himself fame, fortune, and rich rewards.”

In 2021, Editora Record published the book’s 100th edition as O Homem que Calculava. The design uses Le Murmure and Vampiro for title and author, with their Arabic counterparts set in Noto Naskh Arabic and Reem Kufi. The edition notification is set in Impetus, and blurb and text are set in Warnock.