Short Survey of Logographic Systems

There are quite a few books on the use of symbols in communications. Most of these symbols, however, apply to nouns, not verbs, and so are of little value for our work. 

Symbol Sourcebook, by Henry Dreyfuss
An exhaustive list of symbols from a wide variety of fields: agriculture, chemistry, medicine, industry, traffic, business, and so on. These are all strictly black and white symbols, and I found few that could be of use for verbs.

Visual Languages
This is an old (1986) compilation of papers from computer science. I don’t see much value in it.

Blissymbolics by Elizabeth S. Helfman
Another work of little value other than to widen the background of the researcher

Unipix, by Cindy Drolet
A handy-dandy collection of images for travelers who wish to communicate their desires to somebody who doesn’t speak their language. Examples:

A Dictionary of Symbols, by J.E. Cirlot
This has almost no images; it is instead a thoroughly researched compendium of the symbolic roles played by objects. For example, it begins its discussion of ‘Hanged Man’ with the statement “This figure has a profound and complex symbolism.” 

The Penguin Dictionary of Symbols
This is similar to J.E. Cirlot’s book.

Dictionary of Symbols, by Carl G. Liungman
This is an extensive listing of symbols from many different cultures and contexts. I have not read it; I’ve only sampled a few pages from it.