Rhapsody wrote:I have a book on Attic greek, but I really would like to read homer. How different are both dialects?
Fairly different, but not radically. Apart from some dialect differences which show up as minor spelling changes, say [face=spionic]a)gorh/ - a)gora/[/face]
, probably the difference that makes Homeric the easiest is that it contracts less, which makes learning many paradigms easier. In fact, many Attic textbooks give the Homeric forms in parentheses for contracted noun declensions to show the uncontracted forms.
There are also some syntax and word meaning differences (the article in Attic means "this, that" in Homeric).
It's better to learn one after the other, or would be nice to learn both together? or just one?
Not together. Start with one or the other. If your goal is to read Homer, you might as well start with Homer.