used. practised. Greek. prasso.
curious arts. Greek. periergos. Only here and 1 Timothy 5:13. The word means "going beyond that which is legitimate". The kindred verb only in 2 Thessalonians 3:11.
arts = things.
brought... together. having collected.
books. These were either books on magic, or strips of parchment or papyrus, with charms written on them. Many of these have been discovered. The great magical Papyrus referred to above (Acts 19:13) contains about 3,000 lines.
and burned them. burnt them up.
before. in the presence of.
counted. Greek. sumpsephizo. Only here.