50 Picture Puzzles to Improve Your IQ: Book #1 (PICTURE PUZZLE IQ BOOST) (Volume 1)
KALMAN TOTH, M.A. PHYSICS COLUMBIA UNIVERSITY & M.PHIL. IN COMPUTING SCIENCE COLUMBIA UNIVERSITY, IS AN SQL DATABASE DESIGN AND BUSINESS INTELLIGENCE SPECIALIST. HIS PROFESSIONAL RESEARCH INTEREST IS ARTIFICIAL INTELLIGENCE. HE IS CONVINCED THAT MACHINE INTELLIGENCE WILL NOT ONLY REPLACE HUMAN INTELLIGENCE BUT SURPASS IT MILLION TIMES  IN THE NEAR FUTURE. HIS HOBBY IS FLYING GLIDERS, VINTAGE FIGHTER & BOMBER PLANES.