I have studied Mandarin for about one and a half year by myself with books and audiotapes I bought in Amazon. I progressed nicely and I think the grammar (or it's almost absence) is fairly simple, but I got lost with the characters. After a while, I took a few lessons on Missão de Macau here in Lisbon and I realized I wasn't making a correct pronunciation, so learning it alone was probably not the best option... :nerd: