A man, an Engineer:

@eevblog on X: Sadly a respected EEVblog forum member is in end of life care.
He has released his high accuracy book as a multi part PDF. You can check it out here:
https://eevblog.com/forum/metrology/bye-bye-eevblog-hello-morphine/

EDIT: I collated the full book, it's excellent, check it out here:
https://eevblog.com/files/High-Accuracy-Electronics-Christopher-I-Daykin.pdf