What percentage of books books should be displayed face-front?

Research questions

  • What percentage of books displayed face-front produces the highest circulation in a two-week period? Shelving books face front on a shelf of spine-front books reduces information overload by drawing attention to the relatively small number of books shelved face-front. However, increasing the number of books displayed face-front will eventually also produce information overload. What percentage of face-front books produces the highest benefit in circulation?
Previous research
Instructions for conducting an experiment