"Do you know? Yes. - Remember. No. - Learn." - is a collection of simple and easy poems, created to serve as elementary memory exercises. Author - Viktor Yulin. This book contains poems that will help the reader not only to enjoy the beauty of words, but also to improve memory and develop thinking. Thanks to easy poems, the reader can carry out an in-depth study of the language, because they will contribute to the memorization of new vocabulary and grammatical constructions. "Sais-tu? Oui.--Retiens. Non.--Apprends." - is an excellent option for those who want to combine the pleasure of reading with useful exercises for memory and language.