On the cover: Wholemount immunostaining and optical clearing and confocal microscopy reveals the entire lymphatic vessel network (green) of an embryonic day E18.5 kidney. Stromal elements and glomeruli of the kidney are shaded in grey. This technology enhances the imaging of kidney lymphatic vessels in renal development, health or in disease scenarios. Images supplied by Daniyal Jafree and David Long, UCL Great Ormond Street Institute of Child Health, University College London, London, UK