I want to publish a book of poetry

I have been writing potery or raps for about 20 years now and over the years have compiled an extensive library and have performed in public even. Now I see them on the yellowing pages and I want to make them more permanent and save them for posterity. I do not want to publish them for other people but rather for myself and my childrens benefit. So i want to self-publish a book. I have found this place called LuLu.com and it lets you build and publish a book on yur own so I am gonna do it!