This shop sells books readable in software created specifically for optimal retaining of new vocabulary. In other words, helping you learn to read a foreign language. At the moment we sell intelligent e-books in the following languages:
Each book offers a 100 to 200 pages of folk- or fairytales or short stories in a foreign language with pop-up translation in English. Underlying the book is an intelligent method that catches any words you are unfamiliar with and calculates per word from frequency in text and your personal retention factor (how good you are at memorizing) how many times you will have to practice that specific word to retain it in your memory.