In addition to several youtube-based Kotlin courses, there are at least 5 others university-style: http://shop.oreilly.com/product/0636920052982.do http://shop.oreilly.com/product/0636920052999.do https://www.udemy.com/kotlin-java/ https://www.udemy.com/kotlin-course/ https://teamtreehouse.com/library/kotlin-for-java-developers