Penguin Random House, author portrait placeholder image

Cally Oldershaw

Cally Oldershaw is a geologist and gemmologist. She is the author of 15 books on gemstones, and Earth science topics including volcanoes, earthquakes, and oceans and seas. Cally has appeared on television and radio and was the Curator of Gemstones for the Natural History Museum, London and the first Lady Chair of the Gemmological Association of Great Britain. She studied at University College, London and has been a guest lecturer for the universities of Oxford, Cambridge, and London.
Maravillas del Planeta Tierra (An Anthology of Our Extraordinary Earth)
An Anthology of Our Extraordinary Earth

Books

Maravillas del Planeta Tierra (An Anthology of Our Extraordinary Earth)
An Anthology of Our Extraordinary Earth

Get Inspired! Books for After-School Clubs & Activities

Coordinating after-school clubs and activities in your school community? Explore our collection of books that will help students discover their passion for new (and screen-free!) hobbies. Focusing on topics such as art, board games, crafting, cooking, nature, sports, and more—these books are bound to spark imagination and movement. Browse the middle school and high school

Read more