Happy New Year! Holistic, systematic, sustainable, graphical Communication. What did you decide to do... These will make it easier: www.mem-topics.info www.e-mem.info I wish you a lot of mojo by using suitable methods and tools Dipl.-Ing. Werner Riegler memeticor® Useful literature for this theme is here as always: memeticor® book list - and if you want to write something corresponding, here is the memeticor® Blog