These two books are a good introduction: CCENT/CCNA ICND1 Official Exam Certification Guide CCNA ICND2 Official Exam Certification Guide Both are on Cisco Pr

These two books are a good introduction: CCENT/CCNA ICND1 Official Exam Certification Guide CCNA ICND2 Official Exam Certification Guide Both are on Cisco Press. It doesn't go up to BGP but does provide a solid introduction to other routing protocols like RIP, RIPv2, OSPF, and EIGRP.