Leonard Michael Maltin (born December 18, 1950) is an American film critic and film historian, as well as an author of several mainstream books on cinema, focusing on nostalgic, celebratory narratives. He is best known for his eponymous annual book of movie capsule reviews, Leonard Maltin's Movie Guide, which was published annually from 1969 to 2014.
Description above from the Wikipedia article Leonard Maltin, licensed under CC-BY-SA, full list of contributors on Wikipedia.