Writing TV, you’re always outlining. You have to make it the right length, figure out the act breaks, and make sure you have an act-ending hook to bring ’em back after the commercials.
Books, not so much. Some people do detailed outlines, some wing it (seat-of-the-pants writing). I go back and forth; I make a lot of outline-ish notes, but wind up tossing a fair amount.
But whether you’re an outliner or a pantser, you will probably find this handy when writing and organizing.
Jami Gold has free outlining tools (Excel spreadsheets) that will help anyone needing to arrange the sequence of events that make for turn-the-page reading.
She also offers online classes and editorial services.