16 books • 4 series
CCNP Enterprise Advanced Routing ENARSI 300-410 Official Cert Guide (Official Cert Guide)
Exam 78 Official Cert Guide, Volume 1 Premium Edition and Practice Tests (Official Cert Guide)
CCNP Enterprise Advanced Routing ENARSI 300-410 Official Cert Guide (All Inclusive) (Official Cert Guide)
CCNP and CCIE Enterprise Core ENCOR 350-401 Official Cert Guide (Inclusive Access) (Official Cert Guide)