The only book I've read from an "influencer" is How to Win at Chess by Levy Rozman (@GothamChess), and mostly because it was one of two books on chess at my local library. He runs a chess training website (chessly), so he actually has some creds there.

I also bought The Civilian Rights Handbook by John Lang (@AuditTheAudit) because I wanted to support him thought the book might be genuinely interesting to read and loan.

Other than that, I mostly read from regular authors, either past or present.