title: Editorial for PCCP themed issue "Developments in Density Functional Theory".
authors.affiliation: Department of Physics, University of Jyväskylä, Survontie 9 40014 Jyväskylä, Finland. robert.vanleeuwen@jyu.fi.
authors.forename: Robert
authors.initials: R
authors.lastname: van Leeuwen
authors.affiliation: Theoretische Organische Chemie, Organisch-Chemisches Institut and Center for Multiscale Theory and Computation (CMTC), Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149 Münster, Germany. j.neugebauer@uni-muenster.de.
authors.forename: Johannes
authors.initials: J
authors.lastname: Neugebauer
authors.affiliation: Department of Theoretical Chemistry and Amsterdam Center for Multiscale Modeling (ACMM), Vrije Universiteit, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands. l.visscher@vu.nl.
authors.forename: Lucas
authors.initials: L
authors.lastname: Visscher
authors.affiliation: Department of Theoretical Chemistry and Amsterdam Center for Multiscale Modeling (ACMM), Vrije Universiteit, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands. l.visscher@vu.nl and Institute of Molecules and Materials (IMM), Radboud University, Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands. f.m.bickelhaupt@vu.nl.
authors.forename: F Matthias
authors.initials: FM
authors.lastname: Bickelhaupt