One minor quibble with video 45 on papers. The blanket statement is made and echoed that you should not print on OBA containing papers if they are going to be framed behind glass or acrylic as you will lose the benefit of the OBA. This is not universally true as there are different grades of acrylic and framing glass that do transmit UV near the visible region which is the necessary wavelength to cause the OBA to fluoresce. There are both treated acrylic and glass that block 98% of all UV light where the presence of an OBA is not going to have any effect but such materials usually cost much more than the non-treated variety. We had some rather lengthy discussions of this topic over the last several years on the LuLa forums. As I noted just a quibble and again, kudos to Michael, Jeff, and Chris for putting together a wonderful set of videos.