Laar has written many books on Estonian and Soviet history, among them War in the Woods: Estonia's Struggle for Survival, 1944–1956, a book about the Forest Brothers anti-Soviet resistance movement.
他写了许多爱沙尼亚和苏联历史的书籍，其中包括《树林里的战争:为爱沙尼亚的生存而挣扎，1944–1956》，一本关于森林兄弟反苏抵抗运动事迹的书籍。