We all work with lots of image files, we get them from the email and sometimes we re-size them for emailing before sharing with others, but the truth is that some programs are a pain in the butt to use if you want good results.I've worked with various programs in the past, but they were a little slow for my preference or they claim that their software could do something but in the end , they ended up falling short.
Fast Stone Image Viewer lets you view all your images in one pane, or select multiple collections. There are many features which will allow you to retouch, resize, and do more with your photos. The interface is very simple and straight forward and there is even a full screen mode that turns off your task bars and adds all toolbars to each corner of the screen. It hides itself unless you move your mouse to that specific part of the corner.
I really admire this program for what it is, and what it does, and the fact its free with an optional donation to the developer if you really like the efforts they put into this program to bring it to you free of charge.
Upon installation , at the end of it, all it did was open up the browser window thanking me for installing the software.
Developer Website: http://www.faststone.org/FSViewerDetail.htm