Incident Responder learning/cert path

I was just wondering what everyone's thoughts on learning/certs for progressing through the Incident Responder niche would be... I'll be starting a new job next month as an IR Analyst and would like to get a head start.
I'm currently studying for the CCNA (it's been a goal of mine for the last 15-years... long story), which I plan to take in May or June. I'm also reviewing some material for the 74-409: Server Virtualization w/ HyperV exam (free voucher in the Virtualization sub-forum!) for S&Gs. Anyone else have any recommendations for other books to read or certs to pursue?
I'm currently studying for the CCNA (it's been a goal of mine for the last 15-years... long story), which I plan to take in May or June. I'm also reviewing some material for the 74-409: Server Virtualization w/ HyperV exam (free voucher in the Virtualization sub-forum!) for S&Gs. Anyone else have any recommendations for other books to read or certs to pursue?
Graduated Carnegie Mellon University MSIT: Information Security & Assurance Currently Reading Books on TensorFlow
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I've got a copy of Counter-Hack: Reloded by Ed Skoudis, who I understand to be the SEC504 course author, so I'll have to re-read it. Any additional reading material that might be useful?