Book 1

Sphdz Book #1!

by Jon Scieszka

Published 22 June 2010
The perfect combination of the age old experience of holding and pouring over a physical book with newest media technology that kids love! Michael K. just started fifth grade at a new school. As if that wasn't hard enough, the kids he seems to have made friends with apparently aren't kids at all. They are aliens. Real aliens who have invaded our planet in the form of school children and a hamster. They have a mission to complete: to convince 3,140,001 kids to BE SPHDZ. But with a hamster as their leader, "kids" who talk like walking advertisements, and Michael K as their first convert, will the SPHDZ be able to keep their cover and pull off their assignment?

Book 1


Book 2

SPHDZ Book #2!

by Jon Scieszka

Published 21 December 2010
The campaign is going well. The SPHDZ word is getting out. 1000's of kids have signed up to say they are SPHDZ. But things haven't gotten any easier for Michael K. The SPHDZ are still trying to blend in to our Earth culture, but not very successfully. They're still mixing up Thanksgiving, cartoon plots, holidays, and commercials. This makes it especially hard for Michael K. to both hide the SPHDZ from Agent Umber and accomplish the SPHDZ Mission. He's forced to enlist the help of fellow fifth graders, Venus and TJ.

When they (Michael K. and the SPHDZ) are given the assignment to write and perform the school play, Umber thinks he's closing in on the aliens...the kindergartners playing the turkeys.

Book 2

Sphdz Book #2!

by Jon Scieszka

Published 20 September 2011

Book 2

Sphdz Book #2!, Volume 2

by Jon Scieszka

Published 21 December 2010
The campaign to save the earth from being turned off is going well, but Michael K. must enlist fellow fifth-graders Venus and TJ to help hide the SPHDZ from Agent Umber, especially when they become involved in a school play.

Book 3

SPHDZ Book #3!

by Jon Scieszka

Published 20 September 2011
We're close to 3.14 million SPHDZ, but there is still a lot to be done. Michael K., Venus, TJ, and the SPHDZ are working hard to keep kids signing up to be Spaceheadz. But Agent Umber of the AAA (Anti Alien Agency) is relentless and the unseen leader of Spaceheadz turns out not to be who anyone expected!

Full of twists and turns, the third book in the out of this world series continues. And a bigger mystery is about to be revealed!

Book 3

Spaceheadz Book #3

by Jon Scieszka

Published 20 September 2011
The SPHDZ are about to reach their recruitment quota-and that's when the real story STARTS!

Michael K. and the gang only have 100 SPHDZ left to sign up. But something is about to go horribly wrong that will change EVERYTHING forever.

What if the 3.14 million and one brainwaves aren't for saving the world at all? What if Agent Umber finally catches up with the SPHDZ? What if the AAA Chief has a new plan? What if Fluffy can speak...baby? New twists and new turns await readers. And in the end, Michael K. may not know whom he can trust anymore.... The third book in the out-of-this-world series is full of twists and turns-and a bigger mystery is about to be revealed!

Book 4

Sphdz 4 Life!

by Jon Scieszka

Published 1 October 2013
Don't miss the stunning, riveting, hilarious, and 100% fresh conclusion to the interactive Spaceheadz saga!

The SPHDZ accomplished their goal of recruiting 3.14 million and one SPHDZ. But the brainwave has been stolen by the chief of the Anti Alien Agency, and it's up to Michael K., the SPHDZ, and their allies to get it back.

With three potential Chief sightings, the team is spread around the world, leaving Michael K., Venus, TJ, and the SPHDZ to hold down the fort and finish fifth grade. But with a mysterious new principal and graduation fast approaching, will they be able to find the missing brainwave before the Chief uses it to destroy a planet?