I think the idea of Art and Artist is a western 'invention'. Developed from the Renaissance onwards, in both fine art and music. Whereas once these were very much crafts people doing what their patrons wanted, (normally the church and nobility) during the 18th / 19th they achieved a higher status, that of genius. Thus the value of their works... 'ethnographic' "Art" - well its seeing these objects in a different context. But for me its not the privileged gallery museum context of today that is significant, but their original context where they were made without the ideas regarding western art.
Certainly pre agrarian art existed in smaller communities without the institutions of civilization. So for me it shows how making, music, or perhaps sounds, and images is something far more fundamental than the structures we now live in. I think this stuff (wasnt art back then) begins around 40,000 years ago, agriculture @ 10,000 years. There are "flutes" @ 40,000 year old...
As for Lulu, i'd recommend it. As there is no charge until you actually order a hard copy i'd suggest you practice using it and setting up a book. PDF is preferred, but JPG and Word also. The front back cover (full colour) is created separately, they have templates but you can set the layout without these, which gives you greater flexibility. Once you have your book you can down load the pdf and see what it looks like, you can also keep the book private. So no cost until you actually order a hard copy.
Options include hardback, or perfect binding, in various sizes... lulu sets its price, you can then add yours on top. They will even provide a bar code.