What looks like a small book?

It is a new foldable phone.

Foldable means it can open and close.

At first, it looks like a normal phone.

Then you open it.

The screen becomes much bigger.

Here is an everyday example.

You are going to a new cafe.

Open the phone.

See a map on one side.

Write a message on the other.

You do not change screens.

Then close it for your pocket.

Small outside, big inside.

A phone can now feel like a book.