Download or read book Who's that Knocking? written by Alison Lester and published by Picture Puffin. This book was released on 2009 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: Who's that knocking at our front door? Can you guess? Full of surprises, this warm and funny book will delight young children as they open the door to discover who has come to visit. Another classic from Alison Lester, the creator of many much-loved and award-winning picture books, including Are We There Yet'.