I want to know the answer to the following question:
Who noted that 14th century monks bought books in shops?
All the background I'm provided with is that "During this period the practice of manuscript illumination gradually passed from monasteries to lay workshops, so that according to Janetta Benton "by 1300 most monks bought their books in shops", and the book of hours developed as a form of devotional book for lay-people.". Is that enough to answer the question?
Answer: yes