"Wittgenstein's Nephew" is a semi-autobiographical novel that explores the friendship between the narrator and his friend Paul, who is the nephew of the famous philosopher Ludwig Wittgenstein. The story takes place in Vienna and is set against the backdrop of the Austrian mental health system. The novel delves into themes of sanity, insanity, and the fine line that separates the two, while also offering a critique of Austrian society. It is a meditation on the nature of illness, both physical and mental, and the impact it has on personal relationships and one's perception of the world.

"Os Nacionalismos Africanos" explores the rise of African nationalism during the mid-20th century, delving into the various factors that fueled the movement across the continent. The book examines the impact of colonialism, the emergence of Pan-Africanism, and the struggles for independence experienced by African nations. Through a meticulous analysis of historical events and political ideologies, the author provides a comprehensive understanding of the complex dynamics that shaped African nationalism and its enduring legacy in the post-colonial era.