Si you want to see the menu, click on "More info" or turn your smartphone to landscape position.
There are two formats: Kindle (sold in Amazon) and EPUB (sold in Kobo).
You can buy it in Amazon.
In your reader you will see correctly some typesettings details that Amazon sample shows incorrectly:
text boxes that overflow slightly at the right,
some lines closer that others,
images separated from the text when they really are surrounded by text.
You can see here a PDF with screen copies showing this.
Or, if you use "Send a free sample", "Deliver to your Kindle Library" on the right on the Amazon website you can download this sample to your device and get a real idea of what the e-book is like.
You can buy it in Kobo.
To get a real idea of the ebook it's better to use the "Save Preview" option and read it in your device, because the "Preview Now" option doesn't correctly show how is the book like. Or look at Kindle's preview (that neither shows 100% rightly how you will see the book in your device, but it shows it much better than Kobo's).
In Spain you can buy sea water at cheap price at any diet store and some supermarkets. There are 5 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.