Unopen and un-use GMAT books. Books are still sealed but might have minor shelf wear.
Following are the books:
(1) Number Properties
(2) Fractions, Decimals, & Percents
(3) Equations, Inequalities, & Vics
(4) Word Translations
(5) Geometry
(6) Critical Reasoning
(7) Reading Comprehension
(8) Sentence Correction