Open Access

free distribution of knowledge

Open Access publishing (OA) refers to unrestricted online access to published scholarly works. See Open access (publishing) for more media, directly related to Open Access.

OA icons

edit
  Logo originally created by the Public Library of Science (PLoS).

There is one variant with white background and one variant with transparent background.

  OA logo with text.
  Closed Access logo, adopted from the PLoS OA logo.

There is one variant with white background and one variant with transparent background.

  Alternative Closed Access logo to better distinguish open and closed logos
  Open Access web banner (80x15)

Icons, 10x16px      

Icons, 20x32px      

edit

Open Access is not equal to but related to Open data and Creative Commons licenses, which grant more rights in addition to access. See also the similar Open Data logo archive copy at the Wayback Machine.