A while back I added my library to librarything.com. In adding this books I tagged my books with various keywords. As you can imagine there were a lot tagged as “physics.” Indeed when I entered the books there were only a few people who had a comparable number of physics tags, among them a user called lasermazer. Recently I checked in, and damnit, there is now a library that has a lot more physics tags books:

Yes that is the Thomas Jefferson! A cool feature of library thing are “legacy libraries” where you can compare your overlap with other historic libraries. But wait. Thomas Jefferson is cheating. I mean I don’t have a copy of “Advice to shepherds and owners of flocks on the care and management of sheep”, which is tagged “Physics” but it seems to me that this book is most probably not about physicists (managing physicists is not like managing sheep, it’s like managing cats.)
The books I share with Thomas Jefferson are:
L’eloge de la folie by Desiderius Erasmus
The meditations of the Emperor Marcus Aurelius Antoninus by Emperor of Rome Marcus Aurelius
The plays of William Shakspeare : in ten volumes : with the corrections and illustrations of various commentators by William Shakespeare
Titi Lucretii Cari De Rerum Natura Libri Sex by Titus Lucretius Carus