 Okay, I'm just going to simply draw the three types of orbitals that we're going to be want to be, we're going to want to be familiar with in organic chemistry. Those are the S orbitals, the P orbitals, and the D orbitals. So, if anyone asks you, you want to say an S orbital is spherical, a P orbital is dumbbell shaped, and a D orbital is cloverleaf shaped, okay? That's for most of the D orbitals. They're out of the five D orbitals, four of them are cloverleaf shaped, and one looks like a dumbbell with a ring. We're going to draw all those things, okay? So, first let's draw the S orbital, and we're actually going to show the phasing of these orbitals too. So, the S orbital, like we said, is just spherical. The P orbital, dumbbell shaped. So, one side of the dumbbell has one phase, and the other side has the other phase. And like I said, with the D orbitals, four out of the five, our cloverleaf shaped last one is dumbbell shaped with the ring. We call that the D V squared. So, all the other D orbitals are cloverleaf shaped. So, what do we say? S, spherical, P, dumbbell, and D. Okay, good.