DOI: 10.1002/admi. 202000182 approach to the construction of target structures to much larger scales,[6] thereby including the millimetric [7] and centimetric.[8] It is tempting to roughly quantify the popularity of self-assembly in recent scientific literature by means of a quick archive search by keyword: Figure 1 evidences a steep and almost constant rise of the number of documents containing “self-assembly” in the last 20 years. In the wake of the enduring interest and wealth of possibilities empowered by self-assembly, the purpose of this Special Issue was to create a collection of invited contributions that would highlight some of the most recent trends and appealing applications for bottom-up assembly at the micro-and nanoscale. ADMI offered kind hospitality to our ambition, and we consider the Issue very fitting for the interdisciplinary scope and audience of the journal–at the interface indeed between multiple fields and interests. A quick look at the Table of Contents reveals an emphasis on one of the most studied and versatile self-assembled materials, ie, block copolymers and their multiple parametric properties, constellated by contributions on tuneable nanoparticle arrays, monolayer doping of nanowires, functionalization of polymer nanoparticle, capillary self-folding, and a glance into macroscopic self-assembly. What follows is a short introduction to each contribution. Nanowires are a notable example of nanoscale components whose functionality for, eg, sensing and optoelectronic applications needs carefully controlled and highly uniform doping profiles. To address this challenge, a viable alternative to in situ doping (ie, doping during …