Oskar Luts Oskar Luts was an Estonian writer and playwright. was an Estonian writer and playwright. He wrote his happiest works before World War I. He is the author of Kevade - Spring a highly popular novel that portrays the daily school life of young people in rural areas of Estonia. The life of the same characters continued in Suvi -Summer, and Sügis - Autumn. He also wrote playwrights like Kapsapea - Cabbage.