A #1 New York Times Bestseller

A Wall Street Journal Bestseller

A USA Today Bestseller



Inspired by real-life makers Ada Lovelace and Marie Curie, this beloved #1 bestseller champions STEM, girl power and women scientists in a rollicking celebration of curiosity, the power perseverance, and the importance of asking "Why?"



Don't miss Ada's further adventures-with her friends Iggy Peck and Rosie Revere-in the instant New York Times bestseller Rosie Revere and the Raucous Riveters , the first all-new chapter book starring The Questioneers!

Ada Twist's head is full of questions. Like her classmates Iggy and Rosie-stars of their own New York Times bestselling picture books Iggy Peck, Architect and Rosie Revere, Engineer -Ada has always been endlessly curious. Even when her fact-finding missions and elaborate scientific experiments don't go as planned, Ada learns the value of thinking her way through problems and continuing to stay curious.

Collect them all! Add these other STEM favorites from #1 New York Times bestselling team Andrea Beaty and David Roberts to your family library today!

Rosie Revere, Engineer

Iggy Peck, Architect

Rosie Revere and the Raucous Riveters

Ada Twist and the Perilous Pants

Ada Twist's Big Project Book for Stellar Scientists

Iggy Peck's Big Project Book for Amazing Architects

Rosie Revere's Big Project Book for Bold Engineers

Questioneers Family Calendar