This is our biggest and best educational set! The books have a high interest level are easy to read and make learning about palaeontology and geology fun! The complete set includes: 25 children's books on fossils and geologic time 23 identified fossils plus 1 piece of vasicular basalt to represent the Hadean Time 100's of pages of online activities to delight the young palaeontologist. The complete set covers the earth's history through geologic time, palaeontology- including dinosaurs and many of the lesser known invertebrates, how fossils are formed, and geology. There are 4 sets of books written with elementary children in mind. The four sets and the titles included are the following: The Fossil Record: How life turned to stone; (Do You Know Fossils.; Coral; Brachiopods; Ammonites; Trilobites; and Crinoids) The Great Formation of Earth: From a cosmic inferno to a bustling habitat (The Hadean; The Archaean; The Proterozoic Era; The Paleozoic Era, The Mesozoic Era, and the Cenozoic Era). Life: The Beginning: From Paleozoic Protozoa to Mesozoic Predators (540 mya – 250 mya) (The Precambrian, Cambrian, Ordovician, Silurian, Devonian, Carboniferous, and Permian Periods…Yes, there are 7 booklets in this set; 6 fossils.) Life: The Age of Vertebrates: From Mesozoic Reptiles to Cenozoic Mammals (250 mya – The Dawn of Humankind) (The Triassic, Jurassic, Cretaceous, Paleogene, Neogene and Quaternary Periods) One of the best parts of these sets is that they come with online links to hundreds of activities that extend the learning experience. Children can have access to puzzles, games, hands-on activities, and trading cards that will develop their understanding through play. Cheque them out and share a set with your favourite young palaeontologist or geologist…you’ll be glad you did!