A very good collection of cold related spells for the Pathfinder RPG. I have a couple of issues with the product as written, although as GM I can handle the one problem in game with a house rule. Some great spells and great options which brings me to one of my quibbles and that is the lack of ranger spells. Frostburn in 3.5 gave rangers a host of new spells, many of the cold related, so I was expecting some spells for rangers in this product which I did not get. When I do play I play rangers for their martial ability combined with just a little bit of spell casting. Basically I play warrior druids but without the whole shape shifting thing which I really just don't get.
The sorcerer bloodline stands out as something that needs a lot of attention. Great concept, but as written not so great execution. Some of the new spells could have been sprinkled in with the bonuses without much problem. But my biggest criticism is where it contradicts itself. Specifically in the Arcana. If you're going to give the class the ability to substitute cold for a given description then Fire spells should be outright forbidden to the caster but the mechanics of a Burning Hands or Fireball spell should be allowed with a name change, like Freezing Hands instead Burning Hands with the only change being that the type of damage inflicted is switched from Fire to Cold, but otherwise more or less the same spell parameters.
Other than those little things this is a great product that I would love to see as a pamphlet at the very least or combined with other pdfs to make a full book available as a print on demand.
[4 of 5 Stars!]