I have been brushing up on time-dependent DFT and I found this very good review written by Mark Casida. It’s part of a collection of articles on TD-DFT published in the Journal of Molecular Structure. Together with Density Functional Theory: An Advanced Course by Engel and Dreizler these are excellent resources to learn more about DFT. The book covers several advanced topics and therefore at times it’s a bit technical.
P.S. I just noticed a new perspective article on DFT by Burke published in the Journal of Chemical Physics.