I have purchased nine courses from Oplex Careers. All of them belong to the category 'Animal Care', and I can review only these. I feel rather disappointed. The level of difficulty varies between the courses. Some texts are written in an oversimplified manner as if the point was to fill the pages with words, even if they do not contribute to anything. Many sentences were repetitive. Also, I had an impression the text was written by non-native English speakers, and the language has not been edited. The section on animal anatomy was full of medical terminology and jargon. The choice of pictures was unfortunate too. As much as I like cute puppies, as a reader, I'd rather see an illustration relevant to the text next to it. The choice of topics to cover in each course has stricken me as not particularly clever either. Some themes seemed not to belong where they were put. I truly hope the management would review the courses and the offer will be more attractive in the future.