A high resolution sign for the REFERENCE section of your library. Large red letters with the word "Reference" are surrounded with gray scale words of books that can be found in that section.
This PNG file can be printed as a poster for signage or as handouts for library/classroom activities. Resolution is high enough to print posters at your favorite local or online print shop, but do be mindful of potential cropping issues. (Some printers will automatically crop portions of the image, resulting in some missing words.)