Haircutting and Barbering
Foundations
A haircut is controlled removal of hair using guide lines, sectioning, elevation, distribution, and tension. Elevation (angle) determines whether hair is cut blunt, graduated, layered, or long-layered. Distribution is the direction hair is combed relative to the section; tension is how taut the hair is held. Consistent tension and clean sections prevent uneven lines.
Angles and shapes
0° elevation: blunt, one-length cut with no graduation. 45°: graduation builds weight. 90°: uniform layers. 180°: long layers with shorter layers at the crown. Know the difference between a stationary guide (fixed section) and a traveling guide (moves with each section). Cross-check by combing hair in the opposite direction to reveal uneven areas. Clipper work and fades require blending gradations, guard changes, and consistent strokes; barbering includes taper, neckline, and outline shaping.
Traps
Questions often swap elevation angles, confuse graduated with layered, or assume wet-cutting rules apply to dry cutting. Curly hair shrinks - cutting wet can shorten the final shape. Cowlicks and growth patterns cannot be removed; work with them. Tension differences between sides cause uneven lines. Do not over-direct unless the design calls for it.
Worked example: a one-length blunt bob uses 0° elevation, horizontal sections, and a stationary guide at the perimeter. If a client wants volume at the crown but length at the bottom, combine a blunt perimeter with 90° layers in the interior - two guides, not one.
Rule of thumb: cut less than you think, cross-check, and confirm with the client before removing length.