The works of Austrian painter Tina Blau (1845 – 1916) were highly influential for 19th-century landscape painting. This publication presents her artistic output from 1861 to 1916, featuring around 60 works. Her paintings, produced in Vienna, Munich, and during numerous trips to Italy, France, and the Netherlands, are characterized by a distinctive visual language. She painted her first pictures en plein air, directly from the subject; subsequently, she developed a consistent style of artistic expression embodying the dawn of modernism. This catalogue sheds light on her role as a pioneer of Austrian landscape painting and acknowledges her influence on modernism—as both an artist and a trailblazer for women in the art world.