How does your perception of the world change in the course of a lifetime? When Heike Faller's niece was born she began to wonder what we learn in life, and how we talk about what we have learnt with those we love. And so she began to ask everyone she met, what did you learn in life? Out of the answers of children's writers and refugees, teenagers and artists, mothers and friends, came 99 lessons. Suitable for all ages, wisdom for all.