I hope this is the right forum for this question.
In the capitol of the borderlands preview, #14 in the gazatteer (Ruined Wizard's Tower) the treasure includes a special book. The book has a stat line [The Obsidian Shards (Format: Codex; Language: Ancient Zaharan; Topics: Alchemy 2, Elementalism (fire); Complexity 5; Length: 600 pages, Reading Time: 4 days, Value: 1900gp, Weight: 2 3/6 st)]
Does this book give free proficiencies? Enhance existing ones? Is this all Flavor? In other words: What do these stats mean and where can I find this information?