Webtoons are digital comics that originated in South Korea. They are known for their long vertical scroll format rather than pages as with comics and manga. Therefore, since they're presented in one continuous scrolling format, webtoons are easily read on a variety of devices and optimized for smartphones and tablets. One of the key factors for the surge in popularity of webtoons is that they are released weekly. Most comics are released on a monthly basis. However, most Korean webtoons are able to post full new "episodes" every week. Currently a webtoon startup in Korea, Lezhin Comics has over 8,000 titles published in Japanese, Korean, Chinese, and English for audiences around the world.