Shailesh Shirali is the Director of Sahyadri School (KFI), Pune, and former Principal of Rishi Valley School. He is a trustee of the Krishnamurti Foundation India. He has been in the field of mathematics education for many decades, and helped train the Indian teams which took part in the International Mathematics Olympiad. He is the author of several math books for high school students, among them *Adventures in Problem Solving, A Primer on Number Sequences, First Steps in Number Theory, A Primer on Logarithms, Adventures in Iteration *and* Arithmetic and Algebra: Numbers* *and the Beginnings of Algebra*. He serves as Chief Editor for the magazine At Right Angles, published by Azim Premji University.

## Miniatures in Mathematics

*Mathematical Miniatures* is about gems of mathematics: pretty results that one simply has to share with fellow maths enthusiasts. The results are in the tradition of the proofs that the mathematician Paul Erdős described as being ‘from *The Book*’. And they fit the description given by Isaac Newton when he talked poetically of the smoother pebbles and prettier shells that are to be found in plenty upon any seashore. The book is meant for lovers of mathematics, for high school and undergraduate mathematics teachers, and for high school students (10-12).