Here are some tips and tricks to get in level 30 fast!
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* Mine quartz when you are in the nether. It is very good xp.
* When you are mining, always have a fortune pickaxe with you! You get more xp when you are mining ores. (Gold, iron etc. does not drop any xp so it does not count, do not waste your pickaxe!)
* Mine coal, even though you dont need it, it gives a decent amount of xp. And since coal is very common you get xp fast! Remember, use a fortune pickaxe!
* Mine lapizz, redstone, diamond etc with your fortune pickaxe if you have one!
* When killing mobs and animals, use a looting sword! More xp!
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Tip: You need 16 bookshelves to get level 30 enchants!