You get most of the woodcrafting recipes for free, but the special pitch is from being a preparation master (one of the crafting masteries). There are some other special recipes (some special drams requiring potion mastery).
It took me awhile to remember what Lasker used to sell, and he's only been gone about a year and a half! I guess I really don't miss the old way of making crafting necklaces & don't miss the rings at all!
You now craft Yorick's, Frederich's, and Anabelle's necklaces at woodcrafting, smithing, and tailoring (one skill per necklace.) They begin to be available at level 5 crafting, and there's a new necklace (with a stronger rune on it) every 10 levels. They're also soulbound upon creation now. (And if you're not a returning player, you're going to find that whatever website you found that info about Lasker on contains some very outdated info!)
There is no quest. Buy the Mark of Specialization from the Charter vendor, then go talk with the Specialzation lady. She will make you learn all about the various Specs, then let you choose. That's it.