[Kasper Hviid]

I found a few relevant books on gutenberg.org. I have not read any of them so you have to discover for yourself if its worth your time:

Assimilative Memory by A. Loisette 1899
How to Read Human Nature: Its Inner States and Outer Forms by Atkinson
How to Analyze People on Sight by Elsie Lincoln Benedict and Ralph Paine Benedict
How to Add Ten Years to your Life and to Double Its Satisfactions by S. S. Curry
How to Cook Husbands by Elizabeth Strong Worthington
Modern marriage and how to bear it by Maud Churton Braby
Self Mastery Through Conscious Autosuggestion by Emile Coué
The Practice of Autosuggestion by C. Harry Brooks
Memory: How to Develop, Train, and Use It by William Walker Atkinson
The Art of Logical Thinking; Or, The Laws of Reasoning by William Walker Atkinson
How to Read Human Nature: Its Inner States and Outer Forms by William Walker Atkinson
Practical Mind-Reading by William Walker Atkinson
How to be Happy Though Married by Edward John Hardy
A Guide to Men: Being Encore Reflections of a Bachelor Girl by Helen Rowland
The Young Man's Guide by William A. Alcott
Power of Mental Imagery by Warren Hilton
How to Live on 24 Hours a Day by Arnold Bennett
A Practical Guide to Self-Hypnosis by Melvin Powers
Your Mind and How to Use It: A Manual of Practical Psychology by Atkinson
How to Get Strong and How to Stay So
Telling Fortunes By Tea Leaves: How to Read Your Fate in a Teacup by Cicely Kent
Practical Psychomancy and Crystal Gazing by William Walker Atkinson - Some crystal gazing instructions in Lesson II.
How to Read the Crystal by Sepharial - skimming this book, it looks like it is filled with superstitious nonsense, instead of just telling how crystal gazing works.