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Over five decades, he produced some 150 books, many of them illustrated by his wife, Janet Ahlberg, including classics like “Each Peach Pear Plum.”

By Sam Roberts

Allan Ahlberg, an introvert who became a beloved author of blithesome, best-selling children’s books through collaborations with his wife, Janet Ahlberg, and other illustrators, died on July 29 in England. He was 87.