Tintin in the Congo is quite lacking in story, with no real purpose from beginning to end, although a few little episodes are thrown in but not expanded fully and for me this book is not at all interesting. The only saving grace of Tintin in the Congo are the bright, colourful illustrations which will appeal to many people, particularly children. However, once again, I am not really a fan of Herge's drawings and together with the moribund dialogue and lack of story I don't rate this book very highly.
This book is for Tintin fans only and is of interest only because of its long-time ban: now Tintin fans can complete their collection. For others, I don't suggest reading this as your first Tintin story as it is poor in terms of plot and dialogue, and if you are easily offended then this is certainly a book to avoid.