The level of this text is A1, which means that it can be read, without difficulty, by beginners (adults or children). Each version of a book from the Bilingual Bookstore is in ".epub" format. This format is optimised to be easily imported, on your reader (kindle, kobo etc...) or on your application (apple books, googles books). However, we will always help you in case of problems. For a selected book, you must buy a version in the foreign language you wish to learn and buy another version in your mother tongue. On the Bilingual Bookstore , each sentence of each version is numbered. So, when you read a book in a foreign version and do not understand a sentence, you can easily find the disturbing sentence thanks to its numbering in the version of the book in your mother tongue. -