Have any work books in mind apart from ine and narbik
Honestly I’ve never used or even heard of any. I mainly use YouTube and replicate what I use at work and add things to it. I really like PFSense, Sophos UTM, and ubiquity switches and AP’s.
Check out r/ccie. Tons of info about preparing for the CCIE. HTH.
Routers, switches and firewalls. Network blogs, news and network management articles. Cisco, Juniper, Brocade and more all welcome.