ENGLISH: In this book, Petra and Lili learn the difference between spending and investing. This is a key concept in financial literacy and a key foundation for life success. KREY L: Nan liv sa a, Petra ak Lili aprann diferans ki genyen ant depanse lajan ak envesti lajan. Sa a see yon kons p ki kle nan kesyon aprann jere lajan epi se yon baz kle pou jwenn siks nan lavi a.