I read Gbolahon's book, Working on Dream: Lessons in Life and Business over the weekend. It was totally worth it. For those that don't know, Gbolahon is the co founder of Supermart.ng and former co CEO of Jumia.
Gbolahon has a straight-talking style, I have rarely seen in Nigeria where we attribute 95% of success and raison d'etre to the spiritual. His book is extremely well edited and organised. His chapters are organised on themes - hard work, time, attitudue, exposure, breaking the rules etc. so you can pick a theme and read his views on it. It makes good reading if you are just starting your career, in the middle of your career or contemplating a change or a dive into entrepreneurship.