Ahhhh I just went through a similar process with my books! It is such a difficult decision when you're attached to books partly because of their content and partly because of whatever time/relationship in your life they represent in a way.

Well, I know we're brand new lj friends but I'd LOVE to do this exchange. Writing postcards is one of my favourite things, and receiving books another. I'd be most interested in giving a poetry book a home since that is my largest and most precious and frequently-read collection, but I'd be down with anything really. I like surprises.