Teoh Yi Chie (aka Parka) is the blogger and sketcher at Parkablogs.com.
This 139-page e-Book collects all the watercolour sketches he made during a one week trip to Hanoi, Vietnam. There are also photos, travel and sketching tips included.
The PDF e-book is formatted for the iPad Retina resolution. You can view it on any tablet including your computer.
See some preview pages at www.youtube.com/watch?v=OvJ5OIhnC8A
If you have any problems downloading, contact me at teohyc @ gmail . com (no spaces)