The frets could be somewhere alongside the neck. Some diagrams are in favor of vertically oriented, rather than horizontally. But they function the same way, just turn it 90 degrees clockwise. So, the answer is fretboard diagrams can be oriented vertically or horizontally.
fretboard diagrams are always chord diagrams and fretboard diagrams can be oriented vertically or horizontally and Fretboard diagrams can only be oriented vertically are true i hope it will help you please follow me
Primary techniques an artist can use to create depth in a painting are layering and overlapping, changing size and placement, linear perspective, and relative color, hue and value