The paper extends Goldstone's theorem to higher-form symmetries. It moreover shows that one-form symmetries in a 4d CFT can be photonized to free Maxwell electrodynamics and, more generally, that p-form symmetries in a CFT in 2(p+1) dimensions has a free realization. In the 4d case, infinitely many conserved 0-form charges are studied by a twister-based formalism and it is shown that the charge algebra has central extension, giving an analog of 2d Kac-Moody algebra for higher form symmetries. All of these results are interesting, and give new insights into higher-form symmetry. The paper is terse in a good way - it is very clear and packed with nice results and insights. I am recommending Tier II below just because I do not know how to calibrate the level for an Editor's selection, and I think that this paper's readership might be more limited and specialized as compared with the top 10% level Editor's Select.