The letters look like what they mean. This series goes through each one: <a href="http:&#x2F;&#x2F;www.chabad.org&#x2F;multimedia&#x2F;media_cdo&#x2F;aid&#x2F;1930265&#x2F;jewish&#x2F;Letters-of-Light.htm" rel="nofollow">http:&#x2F;&#x2F;www.chabad.org&#x2F;multimedia&#x2F;media_cdo&#x2F;aid&#x2F;1930265&#x2F;jewis...</a>