I was invited to the house by two McCarthy scholars who were embroiled in a herculean endeavor. Working unpaid, with help from other volunteer scholars and occasional graduate students, they had taken it upon themselves to physically examine and digitally catalog every single book in McCarthy’s enormous and chaotically disorganized personal library. They were guessing it contained upwards of 20,000 volumes. By comparison, Ernest Hemingway, considered a voracious book collector, left behind a personal library of 9,000.

According to a conservative estimate, Bruno Schröder's library contained around 70,000 books. Compared to the municipality's only public library, a two-room shop with 4,500 titles, Bruno Schröder's private library was almost sixteen times larger.

In this early period of print, before the introduction of commercial binding, most published literary texts did not stand on shelves in discrete, standardized units. They were issued in loose sheets or temporarily stitched—leaving it to the purchaser or retailer to collect, configure, and bind them.