I finally got round to finish the conversion of London-NY (and back) (my travel sketchbook) to Kindle, so you can now buy an e-book version of my sketchbook at Amazon.com, Amazon UK, Amazon Germany, Amazon Spain or Amazon Italy.
I'm selling it at a special promotional price of $1.99 (around €1.78 or £1.30) which isn't expensive at all, so if you liked the web version it's a good way of showing your appreciation... and also having an offline copy to read/look at everywhere you go: the train, the tube, buses, tramways and even planes!
The Kindle version doesn't have DRM and besides it's under a Creative Commons Attribution-NonCommercial-ShareAlike Unported 3.0 license, so you can print it or make a copy for your friends or family members, for example!
You can also flattr the sketchbook, as I added it as a "thing" to my flattr account.
Hope you enjoy the e-book! :-)