Books Containing Complete Philosophies of Life?

You could try.
A Brief History of Everything by Ken Wilbur

if you would like a fiction literature,
Sophie's World by J. Gaarder is fun.
All of the ideas are true though, the only thing 'fiction' about this is that it's not a biography but a story harboring all of the major ideas of philosophy and their evolution through time. Some universities require students to read this and even use them as references since they correlate major ideas with the era and the individual responsible for the idea as well as its effects on the society.
very insightful and easy-to-understand

Thanks for the suggestions!