Skilled Trades Master Directory


Select one of the following general topics to see more details and to access the free online manuals.

Core Topics

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


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

Aviation (Part 1): Powerplants

Aviation (Part 2): Airframes

This is an extensive series of 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.


The electrical textbooks here cover a wide range of skills, from local distribution systems to domestic fuse box wiring.


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


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

The publisher makes no representations or warranties of any kind, including but not limited to, the warranties of fitness for particular purpose, nor are any such representation implied with respect to the material set forth herein, and the publisher takes no responsibility with respect to such material. The publisher shall not be liable for any special consequential or exemplary damages resulting, in whole or in part, from the userís application of, or reliance upon, this material.

Copyright © David L. Heiserman
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