This book is the first critical attempt made in any language to re-examine the entire oeuvre of Bruno Jasieński (1901-1938). It takes into account the writer's lifelong concerns but places them in the context of the universal value of his writing, generated by his modernist passions and his fascination with the grotesque - an artistic device that was consonant with his need to portray life in all its complexities. The author relies on the grotesque as an element that unifies Jasieński's futuristic poetry with his prose. Especially important in this regard is the close reading of Jasieński's satiric grotesques written in the Soviet Union. The author does not avoid the intricacies and difficult questions of Jasieński's ideological commitment but focuses mainly on the consequences that the highly ambivalent and ambiguous nature of the grotesque has on the interpretation of his work.