This a book written for people of all age, on how to use their phones or tablets to get free Wi-Fi on airplanes.The book explains the art of hacking and finding loop holes and security glitches for the good of all people.Inside you will also read a little about the authors hacking life.Believe it or not the author hacked over 30 apps on his old IPod.Whether your into hacking or not this book will prepare you for your next in air Wi-Fi experience.