Our immune system is an intriguing and amazing aspect of our body. Every day, we come into contact with unwelcome substances that invade our bodies. Our bodies respond by
triggering our immune system to attack, like soldiers on the battlefield.
Most of us only notice the effects of our immune system when it has been compromised. That is, we run a fever, experience inflammation, or notice the development of pus around a wound.
We may recognize these things as bad, but the reality is that all these things are the result of a healthy immune system doing its job. Microbes, viruses, bacteria, toxins and parasites attempt to enter our bodies on a minute-by-minute basis. Our immune system is constantly working hard to keep theses harmful invaders out and prevent them from causing issues.
This book teaches you how to strengthen your immune system and keep it strong.


High! I’m Karen Francis (Empress Zaria) an English Language Teacher Trainer, Business English Coach, and Curriculum Designer with extensive international teaching experience across Africa, China, the Caribbean, and the U.S.
I specialize in English for Industry, Business English, and Professional Communication—helping students, professionals, and organizations achieve success in today’s global economy. Whether you’re preparing for a business presentation, pursuing studies abroad, or entering fast-growing industries like AI, IT, and computer science, I design solutions that match your goals.
As a U.S. State Department English Language Fellow, I’ve worked with universities, teacher associations, and government institutions to build capacity through custom courses, professional development workshops, and blended learning technologies. My fellowship projects included introducing cutting-edge digital tools for English teaching and learning at the PKFokam Institute of Excellence in Cameroon, where I also trained faculty and supported curriculum development.
Through Haile Selassie I MetaVersity (HSIM), I integrate online and virtual reality-enabled English learning with career-focused training. Students who complete certifications in AI, Coding, or IT gain both language support and internship opportunities, making English learning practical, future-oriented, and industry-ready.
✅ What I Offer on Fiverr
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Business English coaching for interviews, meetings, presentations, and workplace success
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Professional writing & editing services (reports, resumes, proposals, academic documents)
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English for Industry programs tailored for IT, AI, and business professionals
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Curriculum design & teacher training workshops for schools, colleges, and organizations
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Custom online learning solutions through HSIM, blending e-learning with innovation
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My approach combines clear communication, cultural awareness, and professional expertise, making learning English not just about grammar—but about empowerment, opportunity, and global connection.
If you’re looking for a skilled English teacher, business communication coach, or professional writing expert who understands both academic excellence and industry relevance, I’d love to collaborate with you.
Let’s take your English, your career, and your opportunities to the next level.




