By Cari Meister, Colleen Madden, Eva Montanari, Valentina Belloni
By Gerald Guerlais, Trisha Speed Shaskan
By Dr. Ernest Drake, Dugald A. Steer, Various
By Charlotte Guillain
By Rebecca Rissman
By Abby Colich
By Marlene Targ Brill, Katya Krenina
By Anne Rooney
By Turner, Tracey
By Krensky, Dr Stephen, Reeves, Jeni
By Bull, Angela, DK, Harris, Nick
By Rebecca Jones
By Brown, Marc
By Savery, Annabel
By Meister, Cari, Nelissen, Marieke, Sasheva, Iva
By National Geographic Kids
By Clibbon, Meg, Lucy
By DK
By Meister, Cari, FarÃas, Carolina, Belloni, Valentina, Montanari, Eva, Kosec, Polona
By Loewen, Nancy
By Jim Pipe
By Philip Steele
By Pipe, Jim
By Shone, Rob (& Nick Spender, illustrator), Rob Shone, Nick Spender
By Parker, Vicky
By Sautter, A. J