Hello everyone, For a project that may involve some work with Anti de Sitter space, I want to understand 1. what the AdS metric looks like 2. how to set up and solve boundary value problems in AdS, e.g. scalar field KG equation in AdS 3. how to quantize scalar fields in AdS For 1, I am reading the authoritative review by Aharony, Gubser, Maldacena, Ooguri and Oz, entitled 'Large N field thoeries, string theory and gravity'. I also tried reading Witten's 1998 paper on AdS and Holography, but there were lots of things I could not relate to (which are becoming less fuzzy with the Aharony paper). What would be good references for 2 and 3? By good, I mean pedagogically oriented, with some examples. Thanks in advance!