If you are a sysadmin and needing to think about building an infra, this would be a must-read for anything storage related. You'll learn a lot. I'd been using ZFS through Truenas Core. I should have read this before even starting to install and plan better y use of ZFS. I now understand all the principle below ZFS without reading too many man pages. Got some tips and tricks.
The style makes t easy to read. Thanks @mwl@io.mwl.io . I now want to read the advanced tome and will probably review my usage of ZFS with TrueCore.