The Secret Power is a self-development book by Robert Collier, American author of New Thought metaphysical books. Being quite enveloped in spiritual aspects on how to be financially free and successful, the author offers a deeper view of mentally and spiritually driven success.
Content:
The Creative Force
The Urge
The Mental Equivalent
I AM
The Talisman
The Perfect Pattern
To Him That Hath
Everything Has Its Price
Yesterday Ended Last Night
The Undying Fire
Prayer

Robert Collier (1885-1950) was an American author of self-empowering and New Thought metaphysical books in the 20th century. He was involved in writing, editing, and research for most of his life and his best known book is The Secret of the Ages. Collier wrote about the practical psychology of abundance, desire, faith, visualization, confident action, and personal development.