Stacking vs thickness: Stacking between the metal–organic layers (MOLs) of MOFs determines their thickness: the higher the stacking, the higher the thickness. This thickness plays an important role in controlling the function of the material, hence, regulating the stacking in 2D nano-MOFs might be very important. We tuned the stacking by modulating the chemical structure of the organic linkers in a series of isostructural MOFs. AFM, XRPD, FESEM, etc. showed the chemical functionality of the linkers to play a pivotal role in modulating stacking efficiency. Such an approach might open a new avenue in controlling the thickness of 2D materials. More information can be found in the Research Article by B. Manna, S. Ida et al. (DOI: 10.1002/chem.202201665).