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Head First 2D Geometry by Dawn Griffiths, Stray

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Lindsey
boxer.
the authors
Ruby the
Dawn
Lindsey Fallow is a self-confessed geek who
has spent the past decade exploring science and
technology as a writer, software developer, and
TV presenter.
After earning her undergraduate degree in
manufacturing engineering, she fronted a science
show for 8–12-year-olds on Disney, and went on
to become a reporter and associate producer for
Tomorrow’s World (the BBC’s #1 prime-time UK
science and technology show) from 1998–2002.
She’s stood on the top of the Golden Gate bridge,
fed sharks, filmed brain surgery, flown in military
planes, and been bitten by a baby tiger, but is the
most excited by far when her 14-year-old stepson
“gets” his math homework.
She is an avid fan of the Head First series and
can’t quite believe she’s actually written one.
Lindz claims that if she were a superhero, her
superpower would be tesselating. When she’s not
working, she likes to spend time with her super-
lovely partner Helen, dabble in sheep farming,
play with her boxer dog, Ruby, rock the drums on
Guitar Hero, and walk in the wilderness.
Dawn Griffiths started life as a
mathematician at a top UK university where
she was awarded a first-class honours degree in
mathematics. She went on to pursue a career
in software development, and she currently
combines IT consultancy with writing, editing,
and mathematics.
Dawn is the author of Head First Statistics, and has
also worked on a host of other books in the series,
from Networking to Programming.
When Dawn’s not working on Head First books,
you’ll find her honing her Tai Chi skills, making
bobbin lace, or cooking. She hasn’t yet mastered
the art of doing all three at the same time. She
also enjoys traveling, and spending time with her
wonderful husband, David.
Dawn has a theory that Head First Bobbin
Lacemaking might prove to be a big cult hit, but she
suspects that Brett might disagree.
viii

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