In all seriousness. Here's an example from a physics textbook.

He's a textbook case.

This is a good textbook.

I mistook a notebook for a textbook.

But let's do another example, and this might be another kind of more complicated example, or something that you might actually see in a textbook.

This textbook has a lot of notes.

Whose is this textbook?

This textbook is good.

Whose textbook is this?

Whose textbook is this?

He was reading a textbook on American history.

The original was written as a school textbook.

You cannot teach connecting dots in a textbook.

There is no such a thing as a comprehensive textbook.

This is a figure from a textbook on underwater sound.

This course is going to have a, a recommended textbook.

You've left out a word in copying the textbook.

Beginning next week, we'll be using a new textbook.

Starting next week, we'll be using a new textbook.

At school we get a new textbook every month.

I meant it to be used as a textbook.

You're like a textbook with arms. I know this.

You must read the textbook closely.

That textbook is out of date.

This textbook is designed for beginners.

I forgot to buy the textbook.

Again the textbook is not required.

It gets distributed to the school system like a textbook.

But if a textbook seems too much fun, it's somehow unscientific.

This textbook is intended for foreign students.

This textbook is too hard for me.

This textbook is written in simple English.

This textbook is written in simple English.

And open your textbook at page ten.

It's important to do it with a textbook adapted to your level.

You must not forget your math textbook again.

We often read Japanese books as our textbook.

Have the textbook room charge him for it.

Next example is a cancer example.

Each chapter in the textbook is followed by about a dozen comprehension questions.

This textbook, having been printed in haste, has a lot of printing mistakes.

This is pretty sophisticated. This is a page from an Algebra I textbook.

They don't even have a textbook sometimes, and they don't even have a proper curriculum.

You know this textbook is made of recycled paper.

This History textbook is intended for High school students.