The epic story of the tiny device that changed the world.

Imagine a time when math meant hours of pencil-scribbling or clunky gears grinding away in giant machines. Today, a simple calculator app can solve complex equations in seconds-but how did we get here?

In Pocket Power: The Story of the Electronic Calculator - How a Tiny Device Changed the Way We Think, Work, and Play, author Kevin Shelton takes readers on a thrilling journey through history, science, and innovation.

• Travel back to ancient China to see how the abacus revolutionized early counting.

• Meet visionary inventors like Blaise Pascal, Charles Babbage, and Ada Lovelace, who dreamed of mechanized math.

• Watch the 1960s race to create the first handheld calculator unfold.

• Witness the calculator wars of the 1970s as prices plummeted and features soared.

• Explore how calculators transformed classrooms, space missions, sports, and pop culture.

With engaging storytelling and colorful illustrations, this book shows how a simple tool shaped the digital age. Perfect for middle-grade readers, tech enthusiasts, and anyone fascinated by how small ideas spark big revolutions.

From counting stones to smartphones, the calculator's journey is a testament to human creativity and the power of numbers.