 His letters are also of interest to scholars and lay readers; for example, his correspondence with writers such as Jerzy Andrzejewski, Witold Gombrowicz, and Thomas Merton have been published.At the outset of his career, Miłosz was known as a "catastrophist" poet—a label critics applied to him and other poets from the Żagary poetry group to describe their use of surreal imagery and formal inventiveness in reaction to a Europe beset by extremist ideologies and war.While Miłosz evolved away from the apocalyptic view of catastrophist poetry, he continued to pursue formal inventiveness throughout his career.