amplification
analysis
analyzing
augmentation
back
background
blackboard
board
chalk
chalkboard
classroom
closeup
design
detail
detective
education
enlarge
enlargement
equipment
examination
explorer
find
glass
handle
increase
inspect
instrument
investigation
investigator
lens
look
loupe
magnification
magnify
magnifying
minimal
object
observation
office
research
retro
round
school
search
sherlock
study
symbol
tool
vintage
wooden