That's rather difficult figure at first glance. The author makes use of Jewish tradition in his teaching, expecting is readers to understand, but he also attacks immorality hard, which is more associated with Gentiles. Scholars suggest that the audience was Christian from a Hellenistic-Jewish background.
It isn't. The shortest is 2 John Book. It has 13 verses while the Jude Book has 25.
Only one Bible book was written by Jude, the one that bears his name.
Epistle
Yes, there is a book in the Bible called Jude. It is the last book in the New Testament and is a short epistle written by Jude, who identifies himself as the brother of James. It addresses false teachings and exhorts believers to contend for the faith.
Jude.
The book of Jude is proven to be written sometime between A.D. 68 and A.D. 70 (68 - 70 years after Jesus died). As for where it was written, no one knows, but Jude, one of Jesus' four half brothers, wrote this book. Jude only became a Christian after Jesus ascended to heaven.
There is one chapter in Jude and 25 Verses.
Jude is the 2nd to last book in the Bible.
Jude
Christians, Jews, and Zoroastrians
Jude wanted fame but instead was obscure - of little prominence and lacked the light of the morality of his culture
II John is shorter than Jude.