The Epistle to Philemon is a book of the Bible in the New Testament.
Philemon is now generally regarded as one of the undisputed works of Saint Paul, although it was questioned in the past by F.C. Baur. It is the shortest of Paul's extant letters, consisting of only 335 words in the original Greek text, and 25 verses in modern English translations.

Matthew
Mark
Luke
John
Acts
Romans
1 Corinthians
2 Corinthians
Galatians
Ephesians
Philippians
Colossians
1 Thessalonians
2 Thessalonians
1 Timothy
2 Timothy
Titus
Philemon
Hebrews
James
1 Peter
2 Peter
1 John
2 John
3 John
Jude
Revelation Significance

J.M.G. Barclay, Colossians and Philemon, Sheffield Academic Press 1997 (ISBN 1-85075-818-2)
N.T. Wright, Colossians and Philemon, Tyndale IVP 1986 (ISBN 0-8028-0309-1)