I've passed my SCJP and now I wanna pass SCWCD, I found two books: head first servelet and jsp. I trust it because it's written by katty sierra and bert bates.
The second is SCWCD EXAM STUDY KIT SECOND EDITION. and it's just a 550 pages. Can anyone advertise me which to choose.
you didnt mention which version of web component you want to go ?
head first jsp and servlet 2nd edition is for scwcd 5. the recent version of exam is ocejwcd 6(1z0-899). as of now there is only single book that targets it which is by Charles lyons(check on amazon, the book name is ocewcd study companion). also check scwcd link given at http://faq.javaranch.com/java/ScwcdLinks. you will get tonnes of help from here and how the people have passed ocewcd 6 exam using hfsj 2nd edition(head first servlet and jsp) and covering extra topics from here and there. i recommend check hall of fame links.