I have three books, two are from the makers of the GRE (ETS) and are the newest editions. The other book is from Magoosh. All are in great shape, no markings. I used only these three resources and did well on the GRE. These books introduce the material and provide tons of examples, with practice tests at the end.
-The Official Guide to the GRE General Test - 3rd edition, by ETS
-Official GRE Verbal Reasoning Practice Questions, Volume 1 2nd edition, by ETS
-Gre Prep by Magoosh