Green Buildings And Zero Energy Buildings

are zero energy buildings an example of green buildings.or are they another considered as a different category.or are green buildings an example of zero energy buildings?? i know my questions sounds stupid but i think it s not as obvious as it appears

What Is The Best Green Building / Zero Energy Book Currently?

I am currently reading “The New Autonomous House” but feel that the publish date of 2000 means that it is outdated. Is there any newer books available?