So one of the bands I play in asked me to get some brushes to use for a "stripped down" segment of songs in the middle of a live show. All of the electric guitars and bass will be put up for acoustic guitars and bass for these three or four songs.

I have NEVER used brushes before, but I'm looking at this as a way to improve my styling and my resume.

With that being said, what are some good teaching tools to help a novice brush user like me as I prepare for this?