His early style reflected the naturalist and Jugendstil influences of the time, but during the 1920s he moved on through expressionism to so-called new realism.
Influenced by Aristide Maillol and Wilhelm Lehmbruck, his artistic interest turned towards the presentation of physical movement and expressions of the human body.
Thiele applies his outstanding powers of observation, his sense for movement and other specialist abilities to developing a mastery of animal sculptures.
Some of his designs were reproduced on an industrial scale by the Schaubach [de] firm, offered as both glazed and unglazed porcelain figures.
One example (among many) was setting up a close collaborative relationship between the academy and the city zoo which created a tradition of animal sculpture in Leipzig which endures to this day.