英文關鍵字
academic
aged
archive
author
background
bibliophile
closeup
collection
concentrated
constitution
discovery
documents
education
encyclopaedia
european
hand
historian
historical
information
intelligent
journalist
justice
knowledge
law
lawyer
learning
librarian
library
literary
literature
nonfiction
old
pensive
picking
professional
professor
reading
research
retro
science
scientific
scientist
searching
study
studying
successful
thinking
university
vintage
writer