At seventeen young Douglas is virtually "invisible" not being well known in school and very antisocial. Staring at the prettiest girl in the school from anywhere accessible. Having his best friend being his polar opposite still does not give him any luck. Focusing on a precious train set left for him by his grandfather Invisible is a very entertaining read that keeps you wondering on the next event constantly. The title comes into more significance as you gradually read through the book. The book is narrated by Douglas himself describing everything through his point of view. I strongly recommend this book to anyone interested in books that instantly grasp your attention with 2-3 chapters.