I have long been a huge fan and consider him to be one of the most intelligent and passionate men who ever lived.
All of his known surviving letters and paintings can be seen here.
http://www.vangoghgallery.com/
Self-portraits always fascinate me-- how artists interpret themselves or project themselves as they wish to be seen, as the case may be. This self-portrait pains me, but dazzles as I try to imagine what he must have felt at the time. [You know, good lord what have I done?]
Self-Portrait with Bandaged Ear