To buy direct from the publisher, who presumably will have it on their site later...

Here is a link that might be useful: Ball Bookshelf - Home Page

I have the older edition. I put my order in for the new edition already. In years to come camellia horticulture would extend the growing regions in Europe, Asia and North America. Many more hardy camellias shall be developed. This book should be a great reference for camellia gardeners, easy to understand and easy to apply.