Online version of biography by Thomas.H.Marshall. First published in 1925.

Biography with photographs, diagrams and animations of his double acting engine. [English, Italian]

Essay on his attempt to improve the performance of the Newcomen engine.

Full text of this eleven chapter biography .

An article for the Deep Cove Crier by the Reverend Ed Hird .

This article contains the most-quoted account of the moment of Watt's invention of his steam engine. First published in 1859 by the journal of the Glasgow Archaeological Society. Includes photographs of the original publication.

Article describing his early life, his work and the funding required to turn the invention into a commercial proposition .