This week it's L - Z and begins with the concept of 'Liking' things, endemic in social media, and a first reaction to a lot of art, but we wonder, is that good enough? Then we take a look at Laughter, at being funny on purpose, and at being a joke. We have a quick quiz on Modernism - can you tell from our examples which ones are contemporary art works? We look at the Market, and the mistaken idea that art that's sold for millions of dollars is better or more important than art sold for a hundred dollars. Materiality is the idea that art should be made from certain materials, then we take on the tangle of words that make up Notions, one of the most widely abused and misunderstood terms in the contemporary art lexicon. There's the shadow play of the Other, and a quick history of Photography, the most pervasive form of contemporary art. What is Post Modernism? A fluffy pussycat! We examine Queer Theory, Representation, and ponder contemporary art's Serious Flaw. We imbibe some Theory and take in Urban Art, a tour through Video Art, the vexatious question of Women, and finally X the unknown, You, before we end up right in the middle of the Zeitgeist.