Ligações - Inglesas

http://www.worldofescher.com/

http://www.mcescher.com/

http://student.dei.uc.pt/~mveloso/escher/artgallery.html

http://www.wishihadthat.com/Directory/Posters/escher.htm

http://www.imaginationproject.com/escher/escher100.html

http://www.math.technion.ac.il/~rl/M.C.Escher/

http://www.etropolis.com/escher/

http://www.nga.gov/collection/gallery/ggescher/ggescher-main1.html

http://www.artistsmarket.com/

http://www.djmurphy.demon.co.uk/escher.htm

http://inorgan221.iq.unesp.br/quimgeral/moebius/escher.html

http://users.erols.com/ziring/escher.htm

http://www.domaindlx.com/escher/diversion.asp

http://www.geocities.com/mcescher76 

http://www.cs.unc.edu/~davemc/Pic/Escher/

http://www-sphys.unil.ch/escher/

http://web.sfc.keio.ac.jp/~aly/escher/

http://www.geocities.com/SoHo/Coffeehouse/6847/escher.html

http://lcs.www.media.mit.edu/groups/el/Projects/EW/