April 23, 2020, the date this cache was placed, is World Book Day. Take a Book, Leave a Book at this hiding spot.
This is fifth in our series of geocaches for beginners and like the first four, is an example of a common type of hide you will run into many times in your geocaching life. Unlike the others, this one is distinctive and once you find it you will walk right up to others knowing right away what to look for. 
What's in a name? Often, the name of a geocache is a clue about it's whereabouts, and this is one such. If you ever watched Hawaii Five-0, you'll know that "Book 'em, Danno" was a common catchphrase. Hawaii Five-0, at 12 seasons, was the longest-running police drama in American TV. The significance of the title of this cache will be "Exhibit A" when you arrive at the coordinates.
Pay attention to the D/T (difficulty/terrain)ratings in the geocaches you seek. This one is Difficulty easy (1.5) and Terrain easy and wheelchair accessible so that makes it a 1.0. If you are new you might want to aim for the easier D/T ones for a while. With this cache (as with most), BYOP - Bring Your Own Pen, and always return the geocache to where you found it and in the same manner.
Please replace carefully; magnet is not that strong.