The haiku (or hokku) is an ancient form of Japanese poetry that has become very popular all over the world. Renowned for its small size, haikus consist of just three lines (tercet); the first and third lines have five syllables, whereas the second has seven. Haikus don’t have to rhyme and are usually written to evoke a particular mood or instance. So, you can have a lot of fun with them! You may have written or will find yourself writing your own haiku at some point in school, or you can get creative and try it at home, too.