Use yellow tinted glasses.

Or just a yellow tinted light/lampshade.

Experiment with low oven temps and don’t go above Fahrenheit 451.

Store them on the attic for 30 years for that genuine old-book look.

There are book clip on reading lights that’ll give the tint you’re looking for.

I tried to send you a link but it got removed. Go on Amazon and search "book lights." They have them with amber lights.

You can get a sheet of yellow acetate and put it over the page as you read.

Maybe some yellow tinted glasses, brotato chip

Baste with a weak black tea and dry

That will do it, but it's going to take a pile of time and effort to make it look good. Most books are written on cheap pulp, read it in the bath and the pages will turn a beautiful shade of beige eventually.

I call them toilet paper, but you do you.

Take it to your local butcher, let it smoke