What is a good resource on table design? I've seen various theoretical treatments of graphics, such as the Grammar of Graphics. But I have seen nothing equivalent with regards to tables. Over the while I have developed an informal model of good practice in table design. 
However, I'd like to be able to provide a good reference to students.
The APA Style Manual has a few tips on table design, but it is only a starting point.
Question:
What is a good resource that provides theoretical and practical advice on the presentation of numeric results in tables?
UPDATE: It would be particularly useful to have a good free online resource.
Note: I'm not sure if this should be community wiki. I feel as if there might be a correct answer.
 A: I hope this answer is not too off topic, but a couple of days ago I have seen this link on visualizing tables at StackExchange:
Visual Representation of Tabular Information – How to Fix the Uncommunicative Table
A: I cover table design in the seminars I offer. My sources are primarily Chapter 8 of Few’s Show Me the Numbers and a paper by Martin Koschat:
Koschat, Martin. 2005. “A Case for Simple Tables,” The American Statistician 59:1, 31-40.  https://doi.org/10.1198/000313005X21429
Also, Howard Wainer discusses table design in Visual Revelations.
A: The UN Document "Making Data Meaningful" provides a nice overview, with rules and examples, of table design in Section 3 (p 12-17).
This is in part 2 of a set of guidelines on 'using text and visualizations to bring statistics to life' https://www.unece.org/stats/documents/writing/
A: This CV blog post by @AndyW is a really excellent.  It gathers a number of best practices, useful examples, and a helpful literature review with links to papers and other resources.  
A: Ed Tufte has a few pages on this in his classic "The Visual Display of Quantitative Information".
For a much more detailed treatment, there is Jane Miller's Chicago Guide to Writing about Numbers. I've never seen anything else like it. It has a whole chapter on "Creating Effective Tables".
A: Stephen Few's book Show Me the Numbers: Designing Tables and Graphs to Enlighten has a couple of chapters devoted to tabular display of information.  It's good and recommended, but it's not quite Grammar of Graphics if that's what you're after.
Update This sounds interesting, but I haven't read it: Handbook of tabular presentation: How to design and edit statistical tables, a style manual and case book.  (Curious to hear any comments from someone in the know ..)
A: If you are interested in table design, I would definitely recommend two papers on the subject by Andrew Gelman:
A necessary preface to the paper on table design is Gelman et al, 2002 Let's practice what we preach: Turning Tables Into Graphs 
Gelman argues that graphs are better than tables in the above paper. Then his satire piece provides a look at elements commonly found in tables that make them particularly difficult to interpret. Why Tables are Really Much Better than Graphs suggest the following (interpreted as satire, these are actually what not to do): 


*

*lots of numbers

*don't obsess about clarity

*exact numbers, minimum of four significant digits

*default table design provided by your favorite software


Both are great reads.

Gelman, Pasarica, and Dodhia. The American Statistician, 56(2): 121-130
Gelman, 2011. Journal of Computational and Graphical Statistics, Vol. 20, No. 1: 3–7.
A: You might check out the documentation for the LaTeX package booktabs; it gives general guidance and implements its design suggestions in LaTeX tables.
