Marcus (1992) describes certain proportions as aesthetically pleasing, including ratios of 1:1.29 for letter paper, 1:1.33 for television screens, and between 1:1.33 to 1:1.50 for CRT screens. The document recommends considering these aesthetically pleasing proportions when designing major screen components such as window sizes, web page sizes, graphics, and groupings of data or text.

2. Marcus (1992) describes the
following shapes, illustrated in
Figure 3.8, as aesthetically
pleasing.

3. Proportions (Contd..)
The American letter paper size has a ratio of 1:1.29, a typical
American television screen has a ratio of 1:1.33, and CRT
screens typically have ratios in the range of about 1:1.33 to
1:1.50.
In screen design, aesthetically pleasing proportions should be
considered for major components of the screen, including
window sizes, Web page sizes, graphics, and groupings of
data or text.

15. Density
how many pixels appear within a constant area of the
display, dots per inch dpi or ppi(pixels per inch )