This introductory electromagnetism and optics text is intended to be
used in the second semester of a two-semester series of courses teaching
*introductory physics* at the college level, following a first
semester course in (Newtonian) mechanics and thermodynamics. The text
is intended to support teaching the material at a rapid, but *advanced* level - it was developed to support teaching introductory
calculus-based physics to potential physics majors, engineers, and other
natural science majors at Duke University over a period of more than
twenty-five years.

Students who hope to succeed in learning physics from this text will
need, as a minimum prerequisite, a solid grasp of mathematics. It is
strongly recommended that all students have mastered mathematics at
least through single-variable differential calculus (typified by the AB
advanced placement test or a first-semester college calculus course).
Students should also be *taking* (or have completed) single variable
integral calculus (typified by the BC advanced placement test or a
second-semester college calculus course). In the text it is presumed
that students are competent in geometry, trigonometry, algebra, and
single variable calculus; more advanced multivariate calculus is used in
a number of places but it is taught in context as it is needed and is
always ``separable'' into two or three independent one-dimensional
integrals.

Note that the *Preliminaries*, *Mathematics* and *Introduction* are not part of the course per se and are not intended to
be lectured on. However, it is *strongly suggested that all
students read these three chapters right away as their first
assignment!* Or, (if you're a student reading these words) you can
always decide to read them without it being an assignment, as this book
is all about self-actualization in the learning process...

The *Preliminaries* chapter covers not physics but how to *learn* physics (or anything else). Even if you think that you are an
excellent student and learn things totally effortlessly, I strongly
suggest reading it. It describes a new perspective on the teaching and
learning process supported by very recent research in neuroscience and
psychology, and makes very specific suggestions as to the best way to
proceed to learn physics.

It is equally strongly suggested that all students *skim read and
review the Mathematics chapter* right away, reading it sufficiently
carefully that they see what is there so that they can use it as a
working reference as they need to while working on the actual course
material.

Finally, the *Introduction* is a rapid summary of *the entire
course!* If you read it and look at the pictures *before* beginning
the course proper you can get a good conceptual overview of everything
you're going to learn. If you *begin* by learning in a *quick*
pass the broad strokes for the whole course, when you go through each
chapter in all of its detail, all those facts and ideas have a place to
live in your mind.

That's the primary idea behind this textbook - in order to be easy to remember, ideas need a house, a place to live. Most courses try to build you that house by giving you one nail and piece of wood at a time, and force you to build it in complete detail from the ground up.

*Real* houses aren't built that way at all! First a foundation is
established, then the *frame of the whole house* is erected, and
then, slowly but surely, the frame is wired and plumbed and drywalled
and finished with all of those picky little details. It works better
that way. So it is with learning.