Oh, how I am loving the Harry Potter series (over and over again...) But great steaming dragon bogies: this 'sourcebook' is too much! Inspiration-spotting really isn't a spectator sport, I guess, but the whole 'Harry was once in a boat, so the author OBVIOUSLY intended us to be reminded of Jason and the Argonauts' approach is just shoddy thinking, surely? There ARE genuine mythical and spiritual roots to the Potter stories - but you won't find them here. The fact that the disclaimer - 'not approved by J K Rowling' - was hidden in gold lettering on gold background on the cover design suggests to me (alas, spotted too late!) that the book is trying to pass itself off as something it isn't. A blind guide. For goodness' sake, hold out for something Rowling DOES approve - and in the meantime, let's trust our own imaginations!