The 25th International Symposium on High-Performance Thin-Layer Chromatography (25th HPTLC) will be held on 29 June – 2 July 2020 in Ljubljana, Slovenia. The program will include invited lectures, oral and poster presentations. The symposium will cover new advances and challenges in all fields of planar chromatography and hyphenated techniques thereof. It will provide an excellent opportunity for young scientists as well as renowned researches and industrial partners to exchange opinions, introduce ground-breaking ideas, and acquire new practical knowledge. Attractive and rich social programme will create a perfect atmosphere for networking.