PNG MORE
Business & finance
Pixel
24x24 Free Pixel Icons
help
Black
24x24
PNG ICO ICNS MORE
Network & communications
16x16 Free Application Icons
question, mark, help
16x16
Mixed
IconSweets 2
support, help, save
40x40
UI
Gnome icons
32x32
Extended, help
help, Comment
Book, open, help
Book, help
document, help