If you’re learning Lithuanian, you will love this Interlinear bilingual Lithuanian book by Jonas Biliunas. It is a translation into English that has the Lithuanian text above and the English text below each line. Definitely looks very interesting, and definitely can help you improve your Lithuanian. After all, reading is the best way to learn languages, and it is especially fun if done in this innovative way from InterlinearBooks.com.
P.S. They also have a Swedish bilingual Interlinear book if you’re learning Swedish instead.