What 1978 children book is consider to be Howard Blake most successful work?
Howard Blake:  Blake's most successful work is his soundtrack for Channel 4’s 1982 film "The Snowman" including the song "Walking in the Air". Walking in the Air: "Walking in the Air" is a song written by Howard Blake for the 1982 animated film of Raymond Briggs' 1978 children's book "The Snowman".
The Snowman