I would be inclined to say that deliberately creating a false impression is a lie. Whether one does it by speaking untruth or by clever cherry-picking of bits of the truth is a matter of technique. Technical expertise, while admirable in its own right, does not change the ethics of convincing someone of something that is not true.

Note that in my opinion the ethics of deliberately persuading someone to believe something that is not true are not necessarily cut-and-dried. Otherwise known as "sometimes it's okay to lie."