Master Catalog of Skilled-Trade Learning Resources

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Core Topics Core topics are those common to most skilled trades. In fact, many are essential prerequisites.

Automotive Automotive lessons include basic theory of operation, troubleshooting, and maintenance procedures for the mechanical and electrical  systems common to today's autos and trucks.

Aviation This is an extensive series of lessons and technical manuals that cover the major topics of modern aircraft powerplants and airframes.

Building and Carpentry These texts are all about strengthening your knowledge of lumber, interior  carpentry, concrete, and masonry.

Electrical These lessons cover a wide range of skills, from electrical distribution systems to domestic fuse box wiring.

Hydraulics This series of courses balances the theory and practice of modern hydraulics.

Plumbing The Plumbing series of online lessons covers water distribution systems as well as inside plumbing and fixtures.

Welding This extensive series of free online manuals is intended for apprentice tradesmen (and women).

Copyright David L. Heiserman
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