
The Journey of Karl-Deen Books
I am Karl-Deen Khalifa (pen name of Olusegun Abdullah Apaokagi), a retired analytical chemist who spent more than forty years asking how things work and why. That habit of questioning never left me, and in time it turned toward the questions that matter most as we grow older, questions about health, about purpose, and about the knowledge we pass on to our children.
This company is young, built recently with a great deal of care. What stands behind it is not decades of business history but decades of curiosity, study, and lived experience. Every book we publish comes from that same place, a wish to take subjects that often feel complicated and make them clear enough to act on.
What we Publish:
We focus on the body after forty, on prevention, and on understanding rather than fear
Personal Development
We publish books about building a steadier, more deliberate life
Children'sSTEM
We make science and space feel like wonder rather than homework, so curiosity has somewhere to grow
Health and Wellness

Karl-Deen Khalifa is my pen name. I am the founder and sole director of KARL-DEEN BOOKS LLC, the company behind the Karl-Deen Books, Inner Compass Books, and Space Odyssey Books imprints. All payments on this site are processed in the name of KARL-DEEN BOOKS LLC.