I have three points: 1. According to wave-particle duality, even regular matter can be classified as a wave instead of a particle, for example, an electron or a neutron. My question is, what is this a wave of? A photon is a wave of oscillating electric and magnetic fields. Are electrons, say, also waves of oscillating electric and magnetic fields, or something else? If so, then why are they not constantly moving at the speed of light? 2. When people draw an electromagnetic wave on paper or a screen, to for example display frequency, all they draw is one wave. If I am not mistaken, though, EM waves are composed of an electric and magnetic component. Thus, how can they be drawn as a single waveform? 3. Also, when they do draw these waves, does a positive amplitude for the electric component mean a positive electric field, and a negative amplitude mean a negative electric field, or is this related to direction not charge? Same goes for the magnetic component. Thank you for answering any of these!