Reasoning and the Logic of Things: The Cambridge Conferences Lectures of 1898 (Harvard Historical Studies) is the most accessible and thorough introduction in

Reasoning and the Logic of Things: The Cambridge Conferences Lectures of 1898 (Harvard Historical Studies) is the most accessible and thorough introduction in his own words. https://www.amazon.com/Reasoning-Logic-Things-Conferences-Historical/dp/0674749677/ref=asc_df_0674749677/?tag=hyprod-20&linkCode=df0&hvadid=241995309321&hvpos=&hvnetw=g&hvrand=15893657184256226217&hvpone=&hvptwo=&hvqmt=&hvdev=m&hvdvcmdl=&hvlocint=&hvlocphy=9028293&hvtargid=pla-572349170548&psc=1 https://www.amazon.com/Reasoning-Logic-Things-Conferences-Hi...