Having read book 1 to 5, the authors did a marvelous job at summarising the contents of these books in book 6 (Assassins) so even if you have not read any of the previous books it is easy to follow. To really enjoy it you should read book 1 to 5 first. Assassins leaves you praying that book 7 should come out quickly. Nearly every one I know that read the book and the first 5 could not put them down once started . The book is another must read. Totally briliant. By the way when is book 7 coming out?