bibliography, the study of books

library science

specialist; expert

largely; mostly

a lot / a majority

library (building)

catalog, list

speciality/specialty; subject of study; subject of expertise; area of interest; profession

to work at a job, to labour / to work properly, to operate, to function; to carry out one's function, to be effective, to come into play / to perpetrate or commit a crime

Alternative spelling of 只働き