BASIC CONCEPTUAL BOOK FOR QUANT PREPARATION FOR CAT SSC UPSC BANKING ETC.IT START WITH SHORT TRICKS FOR ADDITION MULTIPLICATION DIVIDE SQUARE ROOT SQUARE CUBE.DIVISIBILITY ETC.VERY VERY USEFUL FOR TIME AND WORK PROBLEM.AWESOME FOR PERCENTAGE, RATION TOPIC.IT ALSO COVERS MIXTURE RELATED PROBLEM WITH SHORT TRICK USUALLY ASKED IN BANKING EXAM.IT ALSO COVER PROBABILITY.WITH GOOD EXPLATION.ONE OF THE GOOD FEATURE OF THIS BOOK THAT IT HAVE LOT OF PRACTICE QUESTION RELATED TO DATA ITERPRETATION AND PI CHART.IN MY SUGGESTION IF U R SERIOUS FOR ANY EXAM U MUST READ THIS BOOK ATLEAST ONCE