The memory aid "financial mathematics" is more than a reminder; this is a reference book (besides the author Masieri a reference, I use books Masieri for over 35 years during my studies but also in my professional life - business and education). This book contains over 260 pages that concern both the short-term financial operations (simple interest, discount, equity capital, ...) on the long-term financial operations (compound interest, capitalization, updating, annuities, annuities , undivided bond, usufruct and bare ownership, return on investment, ...). This book presents a very affordable way different themes with a relatively accessible development of mathematical formulas (which allows to understand and especially not to put off) and illustrates each theme or parts of one or more examples with explanations very Detailed. At the end of each chapter, there are problems with the solution and exercises, exercises that are not too theoretical but rather that approximate real cases such as one can encounter in the workplace. In conclusion, this book is very educational (I am a teacher in the top and in this matter) and it can be very useful for those wishing to start in this matter (and gradually obtain a good level) or to upgrade and therefore caters to both students as professionals (banking, accounting ...). For those who have the mind very "maths", it would be desirable to supplement it with another work which would be more theoretical and towards formulas demonstrations. I highly recommend it to all who want to progress.