1. Data Analysis and Graphics Using R: An Example-based Approach (Cambridge Series in Statistical and Probabilistic Mathematics)

Like new. Ask for $60.

1. Introduction to Data Mining, (First Edition) (Hardcover)

by Pang-Ning Tan (Author), Michael Steinbach (Author), Vipin Kumar (Author)

Like new. Ask for $55.

The bookstore sells the two book around $190.