Bookcase B includes: Large scale structure, galaxies, stars, stellar evolution, variable stars, supernovae, black holes, and multiwavelength astronomy.

Bookcase C includes: books about the cosmos and science.

Bookcase E includes: books on individual bodies in the solar system (sun + planets + minor bodies like comets, asteroids, and meteors).

Bookcase F includes: quantum mechanics, relativity, time, general pop-sci astronomy books, and multicultural astronomy books.

Bookcase G includes: educational texts for science, science teachers, intro astronomy, intro physics, and cosmology.

Bookcase H includes: uncorrected proofs and popular mainstream science books/authors.

Bookcase J includes: Earth, Earth Science, the Moon, history of humans and the cosmos, philosophy of science/astronomy, and life outside our solar system.

Bookcase K includes: SETI, extraterrestrial life, history of telescopes and observatories, and modern observatories.

Bookcase L includes: biographies, women in science, and history of astronomy.

Bookcase M includes: anything to do with human and robotic space exploration, some aviation topics as well.

Bookcase N includes: solar ephemerides, solar eclipse, planetary and solar system studies, and planetary ephemerides.

Bookcase P includes: general stargazing, the night sky, amateur astronomers, deep sky objects, and operating and/or building your own telescope.

Bookcase R includes: computers/calculations in astronomy, observational astronomy, astrophotography, optics, orbital mechanics, and celestial mechanics.

Bookcase S includes: graduate level texts on stars, stellar atmospheres, particle physics, and astrophysics.