PNG ICO ICNS MORE
Avatars & smileys
3D
Free Large Boss Icon Set
Library, education, librarian
Black
512x512
Photography & graphic design
32x32 Free Design Icons
Book, learning, study
32x32
Signs & symbols
Free 3d Glossy Interface Icon Set
school, tools, scissors
64x64
Education & science
IconFinder Pixel
teacher, geek, nerd
48x48
teacher, education
Family & home
Brilliant
education
400x400
PNG MORE
Desktop apps
Free Applications Icons
project, graphic, Edit
24x24
Dark Glass
education, math, Notebook
128x128