Posted in electronic imaging and displays, Optics

A Clever Book Kids Need A Flashlight To Read | Co.Design

As a kid, I certainly remember trying to sneak some late night reading in at night after lights out. With tablets the flashlight is no longer needed, but that experience as a kid inspired Rebecca Sutherland, Hat-Trick and Knock Knock to create a book Hide & Eek!, with a fun twist:

The exciting and scary images are hidden during the day, and will only appear under a flashlight at night.

“It’s magical then when images appear that cannot be seen with the naked eye,” explains Hat-Trick’s Creative Director Jim Sutherland. “Even when you know how it works, it’s still amazing.”

more via 1 | A Clever Book Kids Need A Flashlight To Read | Co.Design: business + innovation + design.

This book isn’t nearly as high-tech as the stuff I often report on, but it is a great example of how a little adjustment of light, or even angle of light, can really change the image and the whole story.


Beth Kelley is a writer and researcher with an overall interest in how people engage with and are impacted by their environments and vice versa. This has manifested itself in many ways, by looking at creativity, playful spaces and environmental enrichment, sustainability, design research, and integrative and collaborative models of learning such as through play and hands-on learning.