The Site Reliability Workbook: Practical Ways to Implement SRE [pdf]
Huge fan of what Google is doing with SRE, we're mandating that everybody that works on production systems reads this book. So many insights that point you in the right direction on how online services/products are properly deployed. Even if you can't implement everything now, go read the book.We're a small team and we started implementing SLOs for services, we're slowly building our SRE teams, with the purpose of "SRE embeds" in existing engineering teams.A must read for anybody that wants to do systems engineering / devops / whatever sys admins are called these days. A must read for any technical lead.