We accept them into our lives without thought. As far as we're concerned, they've always been there. Books to expand our minds, clothes to keep us warm, clocks to tell us we're late. end of story! Or is it? In this series, Newbery Award-winner James Lincoln Collier, Laura Ingalls Wilder Award-winner Milton Meltzer, and others take young readers on a fascinating, richly illustrated journey of historical exploration and technological discovery. Their aim is as clear as their challenge is worthy. Step into the life and times of the inventors of the printing press, clocks, vaccines, cotton gin, and gunpowder and weaponry. Imagine the world before these great inventions existed. Learn what the inventors did, why they did it, and how they succeeded.

Above all, consider the far-reaching impact of their accomplishments and what it would be like without them!.