This review is specifically about the Kindle edition of The Heart of Darkness, and more specifically:
# Publisher: Public Domain Books (9 Jan 2006)
# Sold by: Amazon Media EU S.à r.l.
# ASIN: B000JQU7A8
Reviews between editions seem to be frequently amalgamated and so it is important to note this is about the free (at time of writing) version.
Please also note that this review is about the 'edition', not the actual story itself and is therefore no reflection on Conrad's writing.
Having made myself clear on what I am reviewing (hopefully!) then my opinion is this:
Download some samples of other versions and pay some small amount for a better text. I struggled with half of this version before resorting to the actual book that I already owned. There are two major problems:
1. The style of writing and the protagonist Marlow's delivery makes very frequent use of dashes (en or em rules). This Kindle edition uses double hyphens, viz --, with no spaces, as in 'There were cases of them down at the coast--cases--piled up--burst--split!', which makes reading awkward and detracts from the narrative style.
2. Carriage returns are used frequently in error and seemingly at random. It is possible to identify new paragraphs as they are correctly indented but, having a line finishing after the first word for example, implies the end of a paragraph. However, the non-indented start of the next line shows that the text was meant to be continuous. Checking several examples with the Penguin text edition shows that these frequent carriage returns are, indeed, in error.
This edition is not recommended for reading on the Kindle.