academic
assignment
book
bookcase
books
bookshelf
bookstore
class
classroom
college
education
educational
evening
exam
homework
information
knowledge
late
learning
library
man
nap
napping
night
overnight
overtime
preparation
preparing
public
read
reading
research
revising
revision
school
science
searching
shelf
sleep
sleeping
sleepy
store
student
study
studying
textbook
textbooks
tired
university
working