Winner’s Mindset by Lyz Mbugua is a Christian motivational/self-help and personal-development book.
Its main themes are:
Faith and spirituality — trusting God and keeping God at the center of your plans.
Positive mindset — overcoming doubts, fears, and limiting thoughts.
Personal growth — becoming more confident and pushing beyond your comfort zone.
Resilience — recovering from setbacks and refusing to give up.
Achievement and ambition — pursuing your goals and striving for success.
Self-belief — believing that you have the ability to overcome difficult circumstances.
In summary: It is a Christian inspirational / motivational self-help, with a focus on mindset, personal growth, resilience, and achieving one's goals.