Not like a traduction!
For example, one character is english and the other is french and instead of translating everything in one language we can just read both at the same time..

Hello

Are you referring to Bilingual books written in both French and English like theses

( https://www.amazon.com/ideas/amzn1.account.AEJUNV2ZAMXSBW7LCW4E6P2WVEDQ/13C44GJO6YJ7F )