a conceptual image representing a focus on the wo (67.2)

A photo of a coffeecup , refers to the internet (65.2)

Adult Ed - Bored in School stock photo, An adult education student in school with a bored expression. (66.2)

Alcatraz Island (some times referred to as The Ro photo (67.2)

blank black book w/path photo (66.6)

blank books with path (66.6)

Books piled in abstract environment (67.2)

Businessman with blank sign picture, Young businessman with blank sign, isolated on white (66.2)

Centrum sign stock photo, Sign with arrows referring to the Centrum (72.0)

Christmas Eve stock photo, The meaning of the word Christmas Eve (72.0)

Color guide - purple to green photo (67.2)

color swatches stock photo (326.16)

Cow Skull top view picture, A cow skull from top view over clean white background (66.2)

encyclopedia in a wooden bookshelf (66.6)

Expression picture, Young business man (72.0)

lawyer working in law library (68.7)

Library books stock image (65.2)

Love, The meaning of love - close-up of a dictionary (72.0)

row of red books photo (70.8)

Series of encyclopedia from 1987 to 1991 photo (65.2)

Shopping street sign picture, Shopping street sign in zhongguancun of Beijing (72.0)

stacked encyclopedia w/ path (70.8)

stacked red books (close view) stock image (68.7)

The word advance. Close-up of the word advance in picture (67.2)

The word education. Close-up of the word educatio photo (67.2)

The word gay. Close-up of the word gay in a dicti (67.2)

The word innovate. Close-up of the word innovate photo (67.2)

This is an image of the hands of two men checking image (67.2)

This is an image of the hands of two men checking picture (67.2)

This is an image of two male bodies, representing (67.2)

Tropical Globe image, A fractal globe done in warm tropical colors that refer to sunsets and palm trees. (72.0)

Used books on a white background image (67.2)

Weighing dark powder picture, Weighing a dark powder on a digital balance (67.3)