Graphic Design Fundamentals and Visual Communication
This domain tests whether you can defend a layout with design principles rather than taste, and whether the visual system you build survives production. Expect questions on Gestalt grouping, grid construction, hierarchy, contrast, semiotics and brief-driven decision making for a defined audience.
Core rules
- Gestalt grouping: proximity, similarity, closure, continuation and figure–ground. When proximity and similarity conflict, proximity usually wins the grouping judgement.
- Grid: columns plus a baseline grid, with defined margins, gutters and live area. Manuscript grid for text-heavy reports, column grid for magazines, modular grid for catalogues and timetables.
- Hierarchy is built from size, weight, colour, position and white space - not from adding a fifth typeface.
- Semiotics: an icon resembles its object, an index has a causal link (smoke for fire), a symbol is culturally arbitrary (an arrow for direction). Wayfinding systems rely on consistent symbol families plus a redundant colour code.
- Contrast for accessibility: WCAG asks 4.5:1 for body text and 3:1 for large text; the same discipline improves print legibility on tinted panels.
- Design for the output device: RGB for screen, CMYK plus spot for litho, bleed and crop marks set at document creation, not patched later.
Worked example
Brief: an A2 poster (420 × 594 mm) read at 3 m, printed at 175 lpi. First, image resolution: required ppi = 2 × lpi = 350 ppi at final size, so a hero image placed 300 mm wide needs 300 ÷ 25.4 × 350 ≈ 4,134 px across. Second, headline size: allow roughly 1 mm of cap height per 250 mm of viewing distance, giving 3,000 ÷ 250 = 12 mm cap height; for a face whose cap height is about 0.7 em, the type size is 12 ÷ 0.7 ≈ 17 mm, and 17 ÷ 0.3528 ≈ 48 pt. Body copy is then set two or three steps down the scale so the hierarchy reads at a glance.
Traps that cost marks
Changing the ppi number in an image without resampling (pixel dimensions, not metadata, decide quality); using five type families instead of one family with five weights; light grey text reversed out of a mid-tone photograph; designing in RGB then converting, which collapses saturated greens and blues; forgetting that a 3 mm bleed is measured beyond the trim, not inside it.
Key points
- Justify layout choices with named principles, not preference.
- Proximity beats similarity when grouping cues conflict.
- Contrast ratios are a design constraint, not a post-check.
- Required ppi = 2 × lpi at final reproduction size.
- Build bleed and marks into the document from the start.
- Match colour mode and resolution to the final output device.