Just a bit of shameless self-promotion here. Delicious magazine have just updates their website and have made a shiny new version of the article published last year about my oven (and how to build one!).
Although it contains most of the information you’d need to build a pizza oven, the devil is in the detail, most of which can be found in my eBook (funny that!!!) 🙂
Here’s the link:
http://www.deliciousmagazine.co.uk/stories/how-to-build-a-wood-fired-pizza-oven-2/
The Clay Oven 
Hi,
Just bought your book and started making the base.
A question about the clay – Has anyone had any luck with powdered clay or pre mixed ‘pizza oven clay’ – I am limited on space and making a mess to puddle it.
Many thanks,
ANdrew