Historically,c hemists have explored chemical space in ah ighly unevena nd unsystematic manner.A sa n example, the shape diversity of existing fragments ets does not generally reflect that of all theoretically possible fragments. To assess experimentallyt he added value of increased three dimensionality,ashape-diverse fragment set was designed and collated. The set was assembled by both using commerciallya vailable fragments and harnessing unified synthetic approaches to sp 3 -rich molecular scaffolds. The resulting set of 80 fragments was highly three-dimen-sional, and its shape diversity was significantly enriched by twenty synthesised fragments. The fragment set was screened by high-throughput protein crystallography against Aurora-A kinase, revealing four hits that targeted the binding site of allosteric regulators.I nt he longer term, it is envisaged that the fragment set could be screened against a range of functionally diverse proteins, allowing the added value of more shape-diverse screening collections to be more fully assessed.[a] Dr.(South Africa)[g] Prof. R. Bayliss SchoolofM olecular and Cellular Biology,U niversity of Leeds Leeds, LS2 9JT (UK)Supporting information and the ORCID identification number(s) for the author(s) of this articlecan be found under: https://doi.