Poplar Publishing Co., LTD. (株式会社ポプラ社, Popurasha) is a Japanese publishing house founded in 1947 that publishes books, magazines and manga for Japanese children, the most famous of which is Pre Comic Bunbun. In 2004 it acquired control of the rival Jive. Some of the children's books published by Poplar are Yutaka Hara's Kaiketsu Zorori , Masamoto Nasu's Zukokke Sannin-gumi (The funny trio) and Troll's Oshiri Tantei (Butt Detective) series, as well as non-fiction books such as the childrens encyclopedia Poplardia. It also publishes the Japanese language editions of Rev W. Audry's The Railway Series and Jeff Kinney's Diary of a Wimpy Kid. Source: Wikipedia (en)