"Amy", his short novel The Secret Agent and The Heart of Darkness. There is some background information on Conrad in those posts.). In the very long ago I read his Lord Jim and Nostromo, considered his best novel. I hope I will reread both of these works in the not terribly distant future.
Almayer is a European business man living in what is now Malaysia, . He is married to a Malaysian woman with whom he has a daughter, Nina. His failed ambition was to find a gold mine. One day he hears the British are coming to take over the area so he built a big house to welcome them on the spot near where he thinks they will land. They never show up and the decaying over time house becomes to be called "Almayer's Folly". At first he still tries to find the gold mine but he gives up and stays home and his wife comes to hate him for his stupor. A Malayan Prince falls in love with his daughter and now the plot gets pretty complicated. Almayer ends his folly in a fire and spends his last time on earth on opium.
I really liked the descriptions of nature in Almayer's Folly. I have been in tropical jungles and for sure Conrad's descriptions are perfect. It is the wonder of his prose that makes this a very much worth reading work. The characters of his wife and his daughter will generate some misgivings as some may see them as being depicted in a way that suggests because they are Asians (orientals) they are possessed of a sinister cunning of some sort. I think one has to see the narrator of the stories, as somehow a character in them to rise above the common place readings of Conrad, centering on The Heart of Darkness, that see him as a racist. I think, this may offend some people, that one reason this is the common view of Conrad is that it is an easy way for teachers to approach his work and is something that can be easily grasped, which cannot be said for the deeper readings of Conrad. It is also a way to dismiss a difficult writer and at the same time pander to the elements of society and the literary world that look at literature not as art but as something to be evaluated for political correctness.
I also want to take this opportunity to be sure that my readers are aware of a wonderful electronic edition of the Complete Works of Joseph Conrad recently released by Delphi Classics. It contains all if the novels and novellas, in chronological order, all of his short stories and the hard to find essays of Conrad. For those who like the idea of reading everything by an author, the Delphi editions are perfect. I think researchers and students would find the ability to search all of an author's works for key terms would also be very useful. The volume contains some very well done information on Conrad and some interesting photographs.
You can learn more about Delphi Classics Edition on their webpage. For $2.99 you can have a complete edition of the works of Joseph Conrad.