Seven Small Inventions that Changed the World
Agrawal, Roma / Choi, Jisu![Seven Small Inventions that Changed the World](https://support.digitalhusky.com/media/annotations/sorted/451/45127188/CHSBZCOP0345127188.jpg)
Award-winning engineer and bestselling author Roma Agrawal takes us on a spectacular journey through time as she tells the stories of the seven small inventions that built and changed our world forever.