Each new purchase of an Exploration Companion guide comes with an exclusive coupon code that can be used to save 65 on these two additional study resources 1. CCENTCCNA ICND1 640822 Official Cert Guide Premium Edition eBook and Practice Test title0132903822 2. LAN Switching and Wireless Companion Guide eBook title0132877481 LAN Switching and Wireless CCNA Exploration Companion Guide is the official supplemental textbook for the LAN Switching and Wireless course in the Cisco Networking Academy C