That is very kind of you Chrissy! But I have never seen any Jack Vance books in any charity shop, and I have been looking perhaps 20 years! Why this is I can only speculate. Apart from Space Opera, the only ones I know of are some anthologies of his short stories, which seem to be extremely rare. Jack Vance seems to be a marmite author. People who like him REALLY like him, and those who don't get him don't read past the first few pages. Ah, such is life. But I am happy for myself that his work exists, and it has given me much pleasure and inspired my own efforts to scribble a bit.