Manual has kept a difficult screw in its kettle repair diagram after a reader asked the publisher to make it look easier. The drawing showed the screw the customer would actually meet.
The printed guide covers a Plainworks kettle. Manual writes instructions for products whose parts a customer can reach.
Errata covers specified materials after documented repair attempts made without assistance. Unwritten runs repair classes where students are allowed to get stuck.
The reader fixed the kettle on a second attempt. Manual left the guide unchanged, without making success look inevitable.