Source:   GotQuestions.Org

Answer:  There are no “lost books” of the Bible, or books that were taken out of the Bible, or books missing from the Bible. Every book that God intended to be in the Bible is in the Bible. There are many legends and rumors of lost books of the Bible, but the books were not, in fact, lost. Rather, they were rejected. There are literally hundreds of religious books that were written in the same time period as the books of the Bible. Some of these books contain true accounts of things that actually occurred (1 Maccabees, for example). Others contain some good spiritual teaching (the Wisdom of Solomon, for example). However, these books are not inspired by God. If we read any of these books, such as the Apocryphal ones mentioned above, we have to treat them as fallible religious/historical books, not as the inspired, inerrant Word of God (2 Timothy 3:16-17 )

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Source:  Truthnet

The Bible is the most published book in the history of the world. The books of the Bible are from in three languages, Hebrew, Aramaic and Greek.  Our English Bible is a translation originally derived from these languages. The story of this process of translation is a mystery to many who search the Bible. By clearing up the confusion of the history of the Bible, we are able to remove obstacles to faith. The Bible spread throughout the earth starts with the spread of Chrisitianity.

             As Christianity spread from Jerusalem, to Asia, Africa, and Europe there was a need to translate the scriptures into the native tongues.  Each translation is a story in itself. For example, the creation of the Cyrillic alphabet (Slavic Alphabet) was a result of the missionary activates of two brothers St. Methodius and St. Cyril (827 AD). Who had the desire to reach the Slavic peoples. An alphabet was created, so the Bible could be translated into their language.  The result of their work still influences the world today.