Celebrated author/illustrator Marc Brown revisits his beloved bestselling character in the first new Arthur picture book in almost ten years! Arthur comes home from school and begins sneaking around the house, taking notes and talking about a Big Green Machine. D.W. is suspicious of her brother's weird behavior, but when Arthur shows up late for dinner with green hands, she "really" gets the creeps! But it turns house Arthur is making a poster listing all the ways to save energy at home--and go green! This heartwarming story is printed on recycled paper with soy based ink.

This is a great book for introducing your child to ‘green living’, or to encourage what they may already be doing. Arthur’s teacher gives his class the assignment to come up with ways to make our planet a better place. Arthur's classmates come up with many good ideas. Arthur calls his idea “The Big Green Machine”, but he leaves readers guessing for most of the book what it actually is.  However, Arthur’s little sister, D.W., misunderstands what it means to ‘go green’ and thinks something is going to physically turn her brother green! The hand-drawn and water-colored illustrations fill the pages with color and detail, providing plenty for your child to check out while you’re reading, or to enjoy while flipping through the book on their own.

Arthur performs many energy and water saving activities that your child can try as well, such as unplugging appliances not being used, taking a shorter shower, using energy efficient light bulbs, and turning lights off that are not being used. It would be a fun project to try any of these things with your child, or to come up with some more of your own! There is also a lot of green in every scene, so it can be an exciting game to see how many green things your child can spot on each page.