Head First 2D Geometry

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the intro

Acknowledgments

Our editors:

Thanks to Courtney Nash, who supported our efforts to think beyond the

conventional curriciulum and took time to wonder with us about what the

learner’s brain wanted to know next. She consistently pushed us toward the

bigger picture—and it’s a much better book for that. Extra props to her for

googling our odd British phrases and sayings to find U.S.-friendly translations!

And to Brett McLaughlin, who started us off on this book, and

provided some really kick-ass training on the Head First way

and why it rules the world. Also to the folk who rocked training

in Boston 2008 and added so much to the experience: Lou Barr,

Elizabeth Robson, John Guenin, Edward Ocampo-Gooding, Aaron

Glimme, Dave Sussman, Les Hardin, David Flatley and Tracey

Pilone. (We heard everybody named in person buys a copy.…)

Our artworker and brain-fuzz-detector:

To Badger (Jennie Routley), for the initial “you should write one

of those…I could do the pictures!”, through to many hours of

genius graphics work. Also for never holding back on telling us

that some algebra was “disgusting” when we’d crossed the line.

The O’Reilly team:

To Karen Shaner, who handled the tech-review process, and

provided a pep talk when the comments first started coming. To our production

editor, Rachel Monaghan, for being patient about the fact that we mistyped “Length” eight times ...