Please do NOT bring home a cockatiel without reading this book (or one like it). This book goes into many of the "little" things that you might not expect, that could become big things if you are unprepared. You likely paid a substantial sum of money for your cockatiel, and yes a good bird is worth it. Does it not make sense to spend a fraction of that cost on your bird education. This book is a giant step in that direction.
Because of this book and another purchased on Amazon, I now have a happy, well adjusted and playful cockatiel and I do not even remember what I paid for the ebook.