Joshua Slocum books
Both of Joshua Slocum’s books (mentioned by Mike Austin last week), are out of copyright and therefore available free of charge in electronic format at Project Gutenberg.
Sailing Alone Around the World by Joshua Slocum https://www.gutenberg.org/ebooks/6317
Voyage of the Liberdade by Joshua Slocum https://www.gutenberg.org/ebooks/18541