Back in 2007, a book Typographic matchmaking was published along with a CD with free beta versions of fonts produced for the projects. THe CD included early version of Fedra Arabic, however the fonts were not yet vocalised with dynamic mark positioning in fonts. This means that while the fonts work correctly in Adobe ME software, but not in other applications. If you need to use the fonts elsewhere, you will have to purchase the release versions of Fedra Arabic.