In my library, I use boxes to make series books easy to find. It's also a great space saver! These signs include cover images, title, and call number. You can easily copy the format to add other series or change the information included.
IMPORTANT NOTE: Download the free font Sketch Block (available at http://www.dafont.com/sketch-block.font) in order to have the same chalkboard-like lettering. If you do not have this font installed on your computer, Word will use your default font.
Digital paper credit to Erin Bradley Designs (https://www.etsy.com/shop/ErinBradleyDesigns)
Cover images used as part of fair use.