Written in the now familiar light and funny style of the Head First Series, this text is also extremely precise, clear, correct and informative. Be warned though, tit has the wrong title. (that's why I give it 4 star instead of 5). It should be called
Head First SCWCD and not Head First Servlets & JSP, since the scope of this text is to prepare you for the SCWCD exam, and it succeeds in that brilliantly. As a first book to learn Servlets & JSP programming though, I think it is a terrible, if funny, book.
In fact it is very good on conceptual matters and especially on the tricky casees and questions that you might encounter in the exam, but it lacks the hands on and by example approach necessary to learn how to actually DO things.
This said, it is still a great book if you intend to refresh or improve your Servlet and JSP knowledge, or to actually take the exam and get certified.
Only , please, enough with this style, let's find another funny one, if I read another Java book with martial arts characters in it I will feel sick ! ;)