If you’ve been creative for any length of time, you’ve noticed that things tend to ebb and flow. You can have an incredibly productive month (or two, or three) and then be tapped out for ideas for a little while. It happens to everybody. Pro writers are able to sidestep that issue by having something called a “hookbook.” A hook is nothing more than an idea – usually a song title, but it could be a guitar lick or melody line. Here’s what you need to know about starting your very own hookbook.