First of all, the positives - UI looks sleek, book covers are nice, the library features titles on many languages other than english, including but not limited to: chinese, german, polish, bulgarian and serbian. But that's when we pretty much run out of positives and come to the problems. You have no way to sort books by languages and you won't know which language a book is until you open its information and scroll down. The books of many classical authors are present in a strange state. Here are some examples: Goethe's Faust has 5 editions, 2 of which are in german and 3 in english, one of the english books has only the first part of the original. "Nikolai Gogol" and "Nikolai Vasilievich Gogol" are registered as two separate authors. Not only that, but Gogol's books, originally written in russian, are only present in english (occasionally german, french or other) translations. The latter is sadly true for most authors I've checked: Pushkin, Dostoyevsky, Honoré de Balzac, Nietzsche. The app has not even one book in russian language. Many books which are public domain aren't present. For example, there are no works of H. P. Lovecraft, Robert E. Howard, Nikolai Lermontov or Stanislaw Lem. Also there is no Bible.