My favourite authors are Andy McNab, Mark Greaney and Louis L'Amour.
Of McNab's novels, Meltdown(first one I read) is my favourite, as well as the entire Nick Stone series. I don't quite enjoy the newer Tom Buckingham series as much as the Nick Stone series but it is still good.
Of Greaney's books, Gray Man has been my absolute favourite. Can't describe how much I enjoyed it in audio book form. Too bad the movie sucked.
Of L'Amour's books, Conagher is my all time favourite, and the Wyatt Earp books are really good reads as well.
As for poems, I haven't really seen many, so my sample size is tiny. My dad wrote poems, and one of his poems that he wrote for my mom is incredibly beautiful. It's in Afrikaans and I can't properly translate it to have the same meaning as he wanted it to have(not that it can't be done, I just don't know how). Please forgive me for not translating