Getting Past Your Breakup and Getting Back Out There are both available in paperback, electronically and in an unabridged audiobook.
As of 2014, GPYB has been or is being translated into several foreign languages. As the foreign language copies become available, I will list them here.
It is available in bookstores, on-line in the United States and throughout the world, including the following sources:
Amazon UK – Paperback
(Amazon UK carries GPYB in French and Polish as well – see below)
Google Play (Android appp)
Getting Past Your Breakup in French (Amazon.fr)
Getting Past Your Breakup in French (livre.fnac.com) – France
Getting Past Your Breakup in French (Canada)
Getting Past Your Breakup in French (Amazon.uk)
Getting Past Your Breakup in French (Priceminister)
The Polish Bookstore: GPYB in Polish (for those in the US). It is available in Polish in Europe.
GPYB in Polish at upolujebooka.pl
GPYB in Polish from gandolf.com
GPYB in Polish (Amazon.uk)
(a Facebook GPYB page follower who is a translator told me the Polish edition is a very good translation.)