I'm the same as above. I took and passed in April. I didn't decide to take the PE till January of this year. I wanted to see how cheaply I could prepare for the exam, which was kind of stupid considering my company paid for everything. Because of work I already had most of the relevant code books. I immediately found this site which is where I saw recommendations for the Graffeo book. It seemed like a decent value. I read through it first and did the problems in the back of the book. I bought the NCEES test which I saved for mock exams close to test time. I found engproguides via google and bought the guide and exam. I printed out at work and put it in a binder. For the price I figured why not. Anyways I created my own table of contents for the engpro study guide. It's a word doc that I can email to whoever might want it. My TOC is nothing phenomenal, but it helped me and another guy here at work who also took the exam. I created a binder tab at the beginning of each section of the guide. My TOC gets you to the right section and then the TOC at the beginning of each section of the guide gets you to the correct page. Graffeo and the engpro guide were my main two references not including the NEC. I had plenty of others but I used them the most. I also bought the cheapest copies I could find of Blackburn, Wildi, and Grainger. As a side note I found doing a couple mock exams a month and a week prior to the actual exam were very useful for training the brain. I think mental stamina is what makes the afternoon part seem harder for most people. .