School on 'Cosmic magnetic fields' ------------------------------ First announcement of the XXV Canary Islands Winter School of Astrophysics, this year devoted to 'Cosmic magnetic fields'. The Canary Islands Winter School of Astrophysics has been organized by the Instituto de Astrofisica de Canarias (http://www.iac.es/index.php?lang=en) every year since 1989. The next one will be held in the word heritage city of La Laguna, Tenerife, from November 11 to November 22, 2013. **The school will overview all astrophysical environments where the magnetic field plays a significant role. It will provide a unifying view of the subject, from cosmology to the Sun, and from molecular clouds to AGNs. Details on lecturers and lecture topics are given in the school webpage.** In order to maximize interactions, lectures and students will stay in the same hotel, which is also the school venue (http://www.hotelnivaria.com/). Special poster sessions will be organized for the students that want to present their recent work. The school is addressed to post-graduate students in Astrophysics completing their PhD, and also to young post-docs. It is limited to 50 participants, and requires a registration fee of 1500 UE. The fee covers attending the school plus lodging in double-room, half board (breakfast and lunch) occupancy, during the duration of the school. In addition, it covers the social events and excursions to the two major observatories of the Canary Islands ('El Teide', in Tenerife http://www.iac.es/eno.php?op1=3&lang=en , and 'El Roque de los Muchachos' on the island of La Palma http://www.iac.es/eno.php?op1=2&lang=en). There will be limited funds for grants. Please, visit the school web page for information and pre-registration: http://www.iac.es/winterschool/2013/ Deadline: June 15, 2013 J. Sanchez Almeida, M. Martinez Gonzalez, F. Garzon, and F. Sanchez