Explain the Mechanics of a Magic Trick Category to an Adult Beginner

Magic works on two levels: the technical method, which keeps the secret, and the psychological performance, which creates the experience. Most beginner advice focuses on the technical without explaining the psychology that makes the technical matter. This explains both for a specific category, gives you the simplest starting effect, tells you what separates amateur from accomplished performance, and is honest about what three to six months of practice would realistically produce.

I want to start learning magic as a hobby. I am an adult beginner and I want to understand {MAGIC_CATEGORY} [for example: card magic, coin magic, mentalism, close-up magic].

Explain how this category of magic actually works:
1. The central mechanic: the core method or family of methods that underpins most effects in this category, explained plainly
2. What makes it effective: the psychological principles the performer uses to direct attention and shape perception, not the technical sleights but the underlying psychology
3. The beginner entry point: the simplest effect in this category that demonstrates the core mechanic and can be performed within [two weeks] of practice
4. What separates amateur from accomplished performance: the non-technical element that makes the difference between an effect that works mechanically and one that actually creates a moment for an audience
5. The honest time investment: what consistent practice for [three to six months] would realistically produce in terms of performance-ready material in this category