Hi , 
Books for Olympiads:



                     •	GEOMETRY


                     1.	Durrel M. A., Modern Geometry Macmillan & Co., London.

    2.	H. S. M. Coxeter and S. L. Greitzer, Geometry Revisited Mathematical Association of America.

    3.	S. L. Loney, Plane Trigonometry Macmillan & Co., London.

    
    

     •	NUMBER THEORY
    
 1.	I. Niven & H. S. Zuckerman An Introduction to the Theory of Numbers Wiley Eastern Ltd. New Delhi.

        2.	David Burton Elementary Number Theory Universal Book Stall, New Delhi.

        3.	G. H. Hardy & Wright An introduction to the theory of numbers, Oxford University Publishers.
                                     

        •	JOURNALS 
        
  1.	Samasya, journal devoted to problem solving, published by Leelavati trust, Bangalore.

            2.	Bona Mathematica, published by Bhaskaracharya Prathistana , Pune. 
            
Thanks and ALL THE BEST 
                
REGARDS
                    
ASKIITIANS EXPERT