I know they've been out for years but I just read the first series, starting with the newer, but first, "First King of Shannara and ending with the "Wishshong of Shannara". I notice that there are other books out there now like the Jerle Shannara series and this new book the "High Druid of Shannara" but I don't know what to make of them. What exactly are they? Do these books take place after the "Wishsong of Shannara" or before the whole series, or duringm, or what? Someone please explain what they are and what order they're suppposed to be read in please?