I bought this book in August 2022. The format/style of this book has definitely boosted my Russian. First, because the short fairy tales are interesting in their own right. Then, the language and vocabulary are varied but still basic enough for a learner to navigate. Each story has a short piece followed by a list of words, phrases, and idioms defined below that section. My recommendation for readers is to read and reread each story before moving on to the next story. I found that re-reading the stories gave me a familiarity with the language that DID boost my Russian. And encountering certain words in different cases helps make cases easier to “feel” them, and the different cases start to sound natural, without having to consciously think of them, which is the way native language happens. I have downloaded other books, and I have enjoyed them all.