It's about time! From the past to the present and into the future, the Orca Timeline series explores how big ideas have shaped humanity. Discover what our collective history can tell us about the planet today and tomorrow.

Why Earth Needs Engineers

Part of the nonfiction Orca Timeline series for middle-grade readers, this illustrated book examines the ways engineers have provided solutions for a healthier planet in the past and present and what future engineering innovations could look like.

Why Communities Need Engineers

Part of the nonfiction Orca Timeline series for middle-grade readers, this illustrated book examines how engineering has helped build successful communities in the past and present and what engineering innovations could look like in the future.

Time for School

Part of the nonfiction Orca Timeline series for middle-grade readers, this illustrated book examines the past, present and future of schools around the world and the who, what, where, when and how we learn.

Cracking the Code

Part of the nonfiction Orca Timeline series for middle-grade readers, this illustrated book looks at the past, present and future of codes and codebreaking.

Just a Minute

Part of the nonfiction Orca Timeline series for middle-grade readers, this illustrated book is a comprehensive overview of time, and how and why we measure it.

Keep Our World Green

Part of the nonfiction Orca Timeline series for middle-grade readers, this illustrated book examines parks, gardens and public green spaces throughout history and shares why it’s important to protect them for future generations.

Making a Splash

Part of the nonfiction Orca Timeline series for middle-grade readers, this illustrated book explores our relationship with water and how we use, control and take care of it.

Can We Talk?

Part of the nonfiction Orca Timeline series for middle-grade readers, this illustrated book examines how humans have communicated over time.

What Do We Eat?

Part of the nonfiction Orca Timeline series, with photographs and illustrations throughout, this book examines the innovative ways humanity grows, finds and eats food.

Why We Need Vaccines

Part of the nonfiction Orca Timeline series, with photographs and illustrations throughout, this book examines the history, science, ethics and social issues related to infectious diseases and vaccines.

Walls

Part of the nonfiction Orca Timeline series, with photographs and illustrations throughout, this book explores why and how people have built walls all over the world throughout the course of human history.

Are We There Yet?

Part of the nonfiction Orca Timeline series for middle-grade readers, this illustrated book examines how humans have navigated the world over time.

Cities

Part of the nonfiction Orca Timeline series for middle-grade readers, this illustrated book examines the past, present and future of cities around the world.

Are We Having Fun Yet?

This nonfiction illustrated book for middle-grade readers explores how and why people have had fun over the course of human history.

Why Humans Build Up

Part of the nonfiction Orca Timeline series, with photographs and illustrations throughout. This book explores why and how people have constructed taller and taller buildings over the course of human history.