Kirkus Reviews wrote "Readers who (inexplicably) find David Lawrence’s Pickle and Penguin (2004) just too weird may settle in more comfortably with this—slightly—less offbeat friendship tale.
"[4] and Publishers Weekly called it "beguiling" and described it as a "...gently humorous and heartwarming tale of friendship found, lost and regained"[5] Inis magazine of Children's Books Ireland described it "a very special book which I am sure will become a favourite with 3 to 4-year-olds.
"[6] while Book Trust wrote " it is a visual delight, and its themes of loneliness and friendship will resonate with young readers.
"[7] Common Sense Media found the movie adaption "appropriate for all ages and doesn't contain anything questionable.
"[8] A stage version of Lost and Found, for children aged 3 and above has been created by Travelling Light and Polka Theatre.