DATA COMMUNICATIONS PAL reference book by Paul Rosenberg from the PAL Series of informational booksThe only pocket reference book of its kind for the design, installation, testing and troubleshooting of teledata, computer, video and other cabling applications.Data Communications Pal has been recently updated to include CAT-6 cabling in addition to graphs, tables, diagrams, and charts involving LAN, RING and other types of networking, Ethernet, fiberoptic, internet and much more. We ship BEST WAY: Fed Ex Ground, UPS Ground, or Priority Mail, Sellers Choice. We do this in order to keep offering you great products and be able to offer “free shipping”. Our “free shipping” is for the lower 48 US states only. If you live outside the lower 48 US states, please contact us for estimated shipping charges prior to buying.