Documented work
Work already done, told the way I'd tell it to you.
Each one explains what was going on, what we decided and what changed afterwards. No mystery and no numbers I can't back up.
Documented work
Read one the way you'd read a recommendation from someone you trust.
They all keep the same shape: what wasn't working, what we did and what changed. If one of them resembles your situation, that's a good place to start.