Edgar Valter (1929 – 2006) was an Estonian graphic artist, caricaturist, writer and illustrator of children's books, with over 250 books to his name, through 55 years of activity (1950–2005). His most famous work is Pokuraamat (The Poku Book).
First published in 1994, Pokuraamat tells the tale of Pokus. A poku is a grass mound that grows in southeastern Estonian bogs. In the book, Valter interprets pokus as animated childlike creatures, the grass actually being their golden head hair, which grows down to their feet. Its central theme is emphasizing the need to respect and to live in harmony with nature. In 1996, the book won the prestigious Nukits Competition award for best children's book of the year. Edgar Valter wrote two subsequent Poku-related books after that: Pokuaabits (The Poku ABC) (2002) and Pokulood (Poku Stories) (2004).
