The most challenging products must EXPLAIN how something should be done (think Adobe Photoshop, where users must be find training on YouTube or elsewhere to engage — even initially—with the product). Having to explain your product is the least effective way to engage new users (and explains why products like Photoshop struggle to attract non-Pros).... See more
Your objective should always be to eliminate instructions entirely by making everything self-explanatory, or as close to it as possible. When instructions are absolutely necessary, cut them back to a bare minimum.