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HARPERCOLLINS
Publishing great authors since 1817, HarperCollins is the second-largest consumer book publisher in the world. With 200 years of history and more than 120 branded imprints around the world with strengths in literary and commercial fiction, business books, children’s books, cookbooks, and mystery, romance, reference, religious, and spiritual books, HarperCollins publishes approximately 10,000 new books every year.
USBORNE
Usborne is one of the world’s leading independent book publishers. We are proud to be a family business that aims to create brilliant books for children of all ages.
Shop Brand CatalogFor fans of the "Who Was" series, this lively, accessible, and full-color chapter book biography shows how a self-taught scientist was the first to observe the microbial life in and around us. By building his own microscope, Antony van Leeuwenhoek advanced humanity's understanding of our oft-invisible world around us.
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