This book can also be purchased from Silverhill Seeds which now has PayPal so it saves you bank charges and the book is a bit cheaper than the offer from the Botanical Society. I don't know if the Botanical Society has PayPal. If you add in postage charges to send this book to the United States which are almost the same as the cost of the book, people who participate in this group offer are saving $10. Members from other countries who might want this book will probably save money by purchasing from Silverhill directly. http://www.silverhillseeds.co.za/ When Arnold added in the costs to ship to another country the price he would have had to charge to cover this second mailing would have made it more expensive than ordering directly. Mary Sue