Hey there, the best way to study no matter who's material is exposing yourself to the questions, to the test. I read and read and read, but it wasn't until I began taking test after test (and section after section) that I began to "understand" what the test wanted from me and my score really improved.
I found study books helpful. If I had one book to pick from it would be the Super test prep book by LSAC. The essential part is the full explanations for every question on three full tests. This helped me to understand what the test wanted from me.
They all have their strengths and weaknesses. I found the Logic games bible the most thorough in games, but then learned a few new techniques from the kaplan book that helped me understand the area better. Same for the other sections. Really, study and take at least one practice test every week.