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author
Seim Daniel
Books by Seim Daniel
A Basic Guide to Systems Thinking: A Handbook for Developing Systems Thinking and Dealing With Systems The Power of Creative Imagination Rating: 0 out of 5 stars0 ratingsThe Art of Concentration: Practices for Increasing Your Focus and Productivity Rating: 0 out of 5 stars0 ratingsThe Mental Calculator: Learn to do Extraordinary Calculations at Lightning Speed Rating: 0 out of 5 stars0 ratingsImprove Your Memory: A Manual of Memory Techniques and Practices Rating: 0 out of 5 stars0 ratings