It was Anne Rice (who can trace her roots in Scotland) who introduced me to the Picts and the Pictish culture in her novel Lasher.It’s part of the series about the lives of the Mayfair witches. You can say that Pictish is related to Celtic or they look the same. But there is a difference. The are the ‘painted people’ of ancient Scotland inhabiting most of the North Eastern part. A beautiful example of their art can be found here: http://www.penandprint.com/images/scotland/2007_dec/pictish_stone_lrg.jpg

For more resources, visit the following links:

http://en.wikipedia.org/wiki/Picts

http://en.wikipedia.org/wiki/Pictish_language

http://members.tripod.com/~Halfmoon/