Logging
From Eco - English Wiki
skill or talent must be specified.
Logging is a specialty found in the Carpenter profession. It reduces the calorie cost and time of felling trees for Logs.
While efficiency reduces calorie cost per swing of the axe, damage decreases the number of times it needs to be swung. Some trees (like Oaks) need more hits to be felled, so this skill can be useful in saving time and calories.
In-game Description
“Felling trees for wood can provide a valuable source of building materials and fuel. Just remember to shout 'TIMBER' so your friends don't get crushed!