The Gospel of Luke
Both books were written by Luke, a companion of Paul, a Gentile (non-Jew) and a doctor. He was commissioned to write both books by a person called 'Theophilus' to whom both books are addressed, although whether or not Theophilus was an actual person or a general term for a follower of Christ (Theos='God', Philius = 'lover'), is uncertain.
Acts of the Apostles is generally believed to have been written by the same author as Luke's Gospel and the narrative of Acts follows the Gospel fairly seamlessly, with only a short overlap. Some scholars say that the second ascension to heaven, which commences Acts, may have been a later addition to the book.
The Book of Romans
Romans
I guess some people could consider the book of Acts as a 'sequel' to the book of Luke, in a sense, outlining the life and ministry of Jesus and continuing with the formation and ministry of his early followers. (compare: Luke 1:3 + Acts 1:1).
Read the book of "Acts" in The Bible
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Acts
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In the book of Acts they met in the upper room for the passover.
The book of Acts
Phoebe was a lady in the bible and comes in the book of Acts.
Amos Acts
Acts 6 - 8 Acts 22:20