Books can be attributed to "Anonymous" for several reasons:
* They are officially published under that name * They are traditional stories not attributed to a specific author * They are religious texts not generally attributed to a specific author
Books whose authorship is merely uncertain should be attributed to Unknown.
This is such a lovely series of books. I came across the 1st 2 in a charity shop then searched desperately for the 3rd. Fortunately the publishers are very helpful and I was able to buy a copy direct. I've started re-reading them and they're just as delightful the 2nd time round. I often think of the pedestrian when I walk across chalk downland or look at archeological finds, it gives you such a connection with the past.