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is easily accessible.
The language used is kept simple and factual and backed up by excellent
annotated graphics.
The combination of illustrations,
captions and explanatory text means there's a lot of 'entry points'
where readers can connect with the subject. You can dip in and out
of book to research a specific subject, but the design also welcomes
flipping the pages to have a browse and see what catches your attention.
There's a comprehensive
index at the back, plus a listing of useful Internet addresses.
At the back of the book there's also a section on 'Principles' where
subjects such as Mechanics, Electronics and Light are explained.
We felt that this important theory section was more academic and
possibly rather text heavy for younger readers when compared with
the clarity of the rest of the book. However, it does serve to give
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