Twenty years ago our journal Structural Chemistry was founded with the primary purpose of providing a quality venue for reports that present the result of complex studies of chemical and biological systems and in the field of materials science, using diverse physical and computational techniques simultaneously and in a concerted way and that are concerned with the chemical, biological, and physical implications of the findings. A sampler of contributions witnesses the fulfillment of this goal and points justified expectations of a bright future for our publication.Matter is much more complicated than most materialists believe, or even are capable of imagining.What is yet to be discovered about the structure of molecules will contain many surprises. Edward Teller [1] Cover of the first issue of