To prepare and choose the route I need to gather as much information as possible. I get information by talking to people who have sailed the route of parts of the routes. Especially for the route along Brazil and Argentina I will get a lot information from Brazilian and Argentinian cruisers who I met during my journey. I try to find as much as possible information online.
The books and websites that I think are useful will I write down in a list below. The idea is that this list will grow during my trip