The present thesis deals with the illustrative work of the artist Norbertine Bresslern-Roth, especially focused on her childrens book illustrations. Starting with her first commission as an illustrator in 1910 up to the images for schoolbooks in the 1970ies, her comprehensive oeuvre in this context is being portrayed and positioned within the history of illustrated childrens books. Not only the child-oriented appropriations to the Nazi regime in the frame of schoolbook-illustrations are a main focus, but also the role Bresslern-Roth played as a spokeswoman for animal protection. Also, the different ways the artist engaged into the childrens worlds throughout centuries in Austria and especially Styria with her naturalistic precision are put into consideration. Illustrations in books of fairy tales as well as in storybooks and her contributions to advertising art by designing toys and candy wrappings were considered, too. Another main part of the thesis deals with her way of working and in which case her illustrations resemble or distinguish from other pieces done by the artist, while she is compared to other coeval illustrators in terms of style and visual language. An index of the publications illustrated by Bresslern-Roth are completing the thesis, also taking books into account, the artist wrote herself.