Let's start with this book--the FE Reference Handbook.  You MUST become familiar with it.  It's the ONLY book that you'll have access to while taking the exam.  Because the exam is computer-based, this reference book is available alongside of the on-screen exam.  It will be electronically searchable, etc. So, it helps to become intimately familiar with it BEFORE it's actually time to take the exam.

You should be using this book to solve all of your practice problems.  It should be your go-to resource for referencing equations for problems.

You can pick up a cheap physical copy or even a free digital copy at the NCEES website. Go and get one NOW.

This is the official practice exam developed by NCEES.  This is a must for any student studying for the FE exam.

I do have some issues with this exam, though.  First, it's only 50 questions, not 110 questions like the real exam.  Second, you have 2.5 hours to complete it within 6 months of purchase.  

It's the most realistic exam, obviously, but why only ask 50 questions and give you 2.5 hours to try your hand at it?  I'd recommend finding a hard copy of an actual 110-question exam so that you can get a feel for the full FE exam.

It's a must-buy, but it's missing some key parts that'll give you the FULL exam feel.  

I know, this book is old.  It's really old for how fast information and these exams change. But let me tell you - this book is awesome!  It's a great reference for studying as it explains each section of study.  It includes great practice problems, too.

I've recommended this reference book to students preparing for the FE exam and they've all told me that it was a great help, even with the current computer-based exam format.  

It's fairly cheap and it's a great reference material; I highly recommend it.

The guys at PPI2PASS have books to prepare any engineer  to pass the exams they need, and the FE is no exception.  We've got a special deal if you go through PPI.  Use our link HERE and get 15% off at checkout!

FE Civil Review Manual by Michael Lindeburg is a complete review manual for the FE exam. It's probably THE most popular book out there so I imagine that it's pretty good. Check it out, read the reviews, and give it a shot.  I think you'll like it.  

Right along side it is the FE Civil Practice problems book that will help you gain the practice you need to ace the exam.

" This comprehensive collection of resources includes all of the physical products that PPI includes in our industry-leading courses. If you already have a digital exam prep option or are looking for traditional book studying, this bundle is for you!

This bundle provides EVERYTHING you need to pass the FE Civil exam the first time. The review materials in this bundle are updated to the current exam specs, contain thorough coverage of civil engineering principles and codes, and include numerous practice problems to challenge your knowledge of those concepts. This curated bundle includes FE Civil Review, the #1 reference manual in the industry, and the most realistic practice problems on the market. PPI’s time-tested, detailed instructional design provides you with the most efficient and effective practice available." 

PPI also has courses for the FE as well and their new Learning Hub that can pull from a library of problems to quiz you.

1001 Solved Engineering Fundamental Problems is exactly what it says it is.  It's 1001 solved problems.

Here's an exact description of the book:

"Here's a wide-ranging collection of practice problems typical of the FE exam in every respect. All exam topics are covered and SI units are used. These multiple-choice questions are conveniently arranged by subject--so you can work through just the areas where you need practice, or all 1001 problems. A full, step-by-step solution is provided for each problem."