Here's the URL so you can have a look for yourself . You'll need to copy and paste it because Weebly, the blog site I use, has mucked about with its "link" gadget and I can't get it to work any more. Arwyddol.
http://www.peterfinch.co.uk/zen.htm
Paid a poeni am y "Zen" peth ... mae ddim y pwynt .... mae y syniad.
Later ... even stranger, it's been translated into French and in that form it's much cheaper ... about a third of the price of the English version. Briwsion! I wonder what the price of a Welsh version would be.