I have written stories for specific readers and writers, based stories on the fan art of others, and been given art based on my works. (whatever.scalzi.com)
Five different ways that digital books can address specific reader needs: comprehension, memory, interpretation, relevance, and extraction / action. (newkindofbook.com)
That's a big part of how specific books get into the hands of specific readers. (ingramspark.com)