Readers opinion

Thanks a lot to everyone who posted their opinion!

The book in Spanish it's at 5th edition (2021).

Since February 13, (2023) the new revised 2nd edition of the book with many small language fixes is on sale.

Readers having bought the book few days before (later than February 9) and having received the 1st edition of the book may ask the author for a free copy of the new revised edition (see his email at the Contact page, and the edition number in the credits page, at the end of the book).

I'm sorry for all the inconvenience.

The author.

In Spain you can buy sea water at cheap price at any diet store and some supermarkets. There are 7 companies bottling and selling sea water because there is a lot of people drinking sea water on a daily basis.

If you at your country become a critical mass of people interested in sea water, companies offering it will arise.

So, it's in your hands, sharing this information meeting your friends, by phone or social networks, to make the conditions where these companies will appear and make sea water even more available to all the people.