graph

Graph Theory: Modeling, Applications, and Algorithms
$138.67
This is a very good introductory book on Graph Theory. If you don't want to be overwhelmed by Doug West's, etc., and yet receive a decent introduction to the topic, this book is your best bet. It covers all the topics required for an advanced undergrad course or a graduate level graph theory course for Math, engineering, operations research or computer science students in good depth and details. There are good examples and interesting exercises; some computer codes (JAVA) are also available in the book implementing some of the algorithms.
I would say O.R. and CS people will benefit a lot from it both as a reference or a textbook if adapted for a one semester graduate course. The only drawback is the price!

Graph Theory (Graduate Texts in Mathematics)
$69.95
The book from the seller was in great shape and unlike some sellers, was shipped in time anthe product particularly was in mint condition

Pentel Graph Gear 1000 Automatic Drafting Pencil, 0.5mm Lead Size, Black Barrel, 1 Each (PG1015A)
$21.50
It is indeed a great pencil. Great grip. Writes really smooth. The look is fancier than I would want in a pencil esp. because I am a Senior in Undergraduate program and sometimes makes me feel like primary school boy trying to show off. But except for that, it is indeed a great pencil.

Maps, Charts, Graphs & Diagrams
$10.99
Exciting hands-on activities teach students about making and reading maps, charts, graphs, and diagrams.