yeah, we are familiar with the syllabus and recommended books, but they're mostly problem solving ones with little to no theory involved. as for your suggestion, this is what I got greeted with as soon as I dled:
>This is a book about mathematical problem solving. We make three assumptions about you, our reader:
>∙ You know high-school math pretty well, and have at least begun the study of “higher mathematics” such as calculus and linear algebra.
my cousin has only studied 10th standard stuff till now, so he's probably too young for the book. I'll make sure he reads it once he completes these topics.