Hlaváček was born into a working class household in the Prague neighborhood of Libeň.
He published his poetic works and art criticisms in the journal Moderní revue (Modern review).
[3] Hlaváček was also active as a sketch artist and created illustrations for the poems of Arnošt Prochazka.
[4] He was and heavily inspired by Edvard Munch, creating hallucinatory drawings, both in Symbolist and early expressionist style, suggesting anxieties about sex and religion.
[5] He was the founding member and the first president of the nationalist and athletic Sokol group in the Prague suburb of Libeň.