Bar charts may be adapted to fit almost any application.

2. The height of each bar is easily compared.

3. There should be some order for arrangement:

a. Time-series

b. Magnitudes

c. Geographical

d. Alphabetical

4. The actual amount which each bar represents should be given.

ITEMS

ORDERS

ORDERED ONCE IN A SIX MONTHS PERIOD

ORDERED MORE THAN TIMES

ORDERED 10-24 TIMES

ORDERED 25-50 TIMES

ORDERED more: TIMES

Redrawn from a Chart by U. S. D«partmrnt of ARriculture, Bureau of Agricultural Economicf.

Frequency of Orders of Ten Selected Candy Plants in the United States in 1930.

When none of the various shading films arc available to provide cross hatchings on a chart, rulings such as these may easily be put in by hand. Care should be taken not to create weird effects such as those in 93A and 115A.

GRAPHIC PRESENTATION

Tolol wiuia cMioi

Untli>ll«4

■Hi Vtoffting ^ u*uol toc*o-«conomic Oo\t

p^^ Worlitng M 0IA«f thon utuol ucio-«conom*c ctOH

Ptfccnl 0 20 40 «0

1 1 1 1 1 1 1 r

::;:.::::.::-:.xx.:v::::::::v:vX^^^^

ii/mrTT» » I

■r^ I ■' >

3.

:S±2iS2±S5^

---^-'-■^^ I

fEMAUE WORKERS Totol

Wh.lt COllOf SkillM Scm.tlitlltd

WPA, Division of Social Research, "Urban Workers on Relief," 1936. SCALE .6

A. Proportion of Employed Workers on Relief in Jobs of Their Usual Socio-Economic Class in the United States in May, 1934.

The inclusion of the "total" bar in each of the two classifications adds to the value of this chart.