Message in wrong place?? Sorry...
Thanks for the return and help.
I already visited the Polisil site and saw they have many useful products!
I asked about the eBooks because you have a great easiness (is this word correct?) to
produce technical text with illustrations!
I have some technical eBooks in Amazon. Look for my complete name Paulo Edson Mazzei.
Regarding the ceramics, can a contact you via the e-mail address furnished in the site?