Presentaciones.

Arte gótico: 
https://docs.google.com/viewer?a=v&pid=explorer&chrome=true&srcid=0Bz5bQdBTjK6uY2EyYTg4NWItMDMyMC00ZTExLTgzMGMtNDRlNDFjNjBmNmY2&hl=es

Animales:
https://docs.google.com/viewer?a=v&pid=explorer&chrome=true&srcid=0Bz5bQdBTjK6uMGM0OGRmNDMtZjk1ZS00YTQzLTkzMTMtNzFhYjMxYTg5ZTFl&hl=es