You can buy Waving, Not Drowning in various E-book formats directly from this site:

Buy the PDF version of Waving, Not Drowning

Buy the EPUB version of Waving, Not Drowning

Buy the MOBI (Kindle) version of Waving, Not Drowning

We want everything to be perfect. If you have a problem buying or downloading the book using the above links, let us know using the contact page. If you’re having trouble getting off to sleep, on the other hand, you’re on your own.

If you insist, you can also get it from the Kindle stores:

Buy Waving, Not Drowning from the Kindle UK store

Buy Waving, Not Drowning from the Kindle US store

And it’s also available in myriad formats on Smashwords:

Buy Waving, Not Drowning from Smashwords