The Cisco
CCNP Certification Library is a set of four technically-correct books
written as course materials. They all have the same strengths and
weaknesses: they're technologically accurate and make passing the exam a
no-brainer, but the dense, no-frills nature of the writing means that
every sentence must be read thoroughly and completely to guarantee your
CCNP.
First of all, the good points: By and large, these books
are highly accurate and reasonably error-free, which is not at all
surprising, since these are official course guides straight from Cisco's
mouth. They get their facts across directly and succinctly, and are unlike
most other certification books in that they're all deeply concerned with
teaching you how to do your job properly. They're packed with on-the-job
examples, and the experience shines through when it comes to teaching you
the important bits, for not only do they show you the "how" and
the "why," but quite often they also show you the
"where"--how each technology and protocol fits into the larger
picture.