To mark World Book Day, 71 art centres and museums are to take part in a BookCrossing experience in which 5,000-plus books will be set free. Sixty-four Spanish and 7 international museums have signed up for the experience.

Independently of its permanent collection, the Bilbao Fine Arts Museum regularly organises temporary exhibition programmes. Now its guest work is Oak in the Snow by Caspar David Friedrich.

For awaking public interest in heritage conservation an annual event, today is celebrated, all over the world, the International Day for Monuments and Sites.

The National Gallery of Art (Washington, USA) has made possible the acquisition of Etude (1969) by Simon Hantaï (1922–2008), from his series of the same name. The museum has also acquired, for its collection, works on Paper by Andy Warhol and Robert Heinecken.

280 artists of 44 nationalities will participate in 74 exhibitions in the XVth edition of PHotoEspaña, which will take place in Madrid from June 6 to July 22. The fifteenth edition of the International Festival of Photography and Visual Arts will offer a program of 74 exhibitions in 68 venues among them museums, galleries, art centers and exhibitions halls.