In the last video from this playlist I tried to visualize atoms - now it is about bonds between atoms, i.e., about molecules. This means, I am talking again about electrons and where they are located, i.e. about orbitals. On hte other hand, however, I will also talk about how to visualize the electric fields which are dominating the world of atoms.

My sources are, of course, Wikipedia, but here is also a citation from my (long past) time of studies ... which I actually started rereading.

A.F. Holleman, E. Wiberg, Lehrbuch der Anorganischen Chemie, 91.- 100. Auflage, Walter de Gruyter, Berlin, New York, 1985