Overall, the book is in good condition, but there are a few pages with pencil markings. I have included photos, but not of all the markings. Please understand that this is a used item before purchasing. Immediate purchase is welcome. A textbook explaining the basic concepts of linear algebra. - Title: Key Points Linear Algebra - Authors: Junki Shinoma, Koji Yotsuya - Publisher: Iwanami Shoten - Contents: A textbook explaining the basic concepts and applications of linear algebra. Thank you for looking.