*Playing With Math: Stories from Math Circles, Homeschoolers, and Passionate Teachers*, as part of their series of playful math books. The first book in the series is now out:

*Moebius Noodles: Adventurous Math for the Playground Crowd*, by Yelena McManaman and Maria Droujkova, illustrated by Ever Salazar, is a gift to parents and kids everywhere. The book is full of ways to grow mathematical eyes, with very accessible activities.

I wrote about Maria's crowd-funding campaign back in 2011. She raised $6200 back then, and is sending out lots of books to the funders. (Can't wait to get my copy!) If you didn't join in then, you can still buy a copy for $15. If you have anyone in your life with young children, I think they'll love it.

If you're just as comfortable reading your books online, you can get a pdf at whatever price you choose to pay (from zero to infinity). I like this model. When I wanted to read

*Little Brother*, by Cory Doctorow, I downloaded the free copy.I had already bought a copy for my nephew the previous xmas, and wanted to know how good it was before spending any more money on it. I loved it, and didn't hesitate to buy a paper copy of another of his books,

*Makers*. (Also available for free.) I've bought lots more of Cory Doctorow's books than I would have if the free copies weren't available. So we're both happy. And I believe

*Moebius Noodles*will work out the same way. You can download the pdf for free to get a taste. And, if my guess is right, you'll be eager to fork over the $15 for a print copy that's easy to share with little ones.

...watching for a package...