ASK THE EXPERT: How is the Selling of e-books Regulated in Spain, Germany, England and Italy?

John Gardner asks:

I am evaluating an e-commerce business (selling e-books that I will generate on specialist topics) which I may base in the Canary Islands. I want a set of terms and conditions available in each of the languages, that are relevant to the legal obligations to each country, or all sales could be governed by Spanish law (?). I understand that this is something you can supply. Please advise.