Great time traveling book. I've read this book numerous times. The time traveling in here works just like you wish the force would work...(if you just think hard enough maybe you can switch off the bedroom light from the bed)...if you just think hard enough, immerse yourself in the time period you want to go to wearing the clothes living in an apartment decorated the way it should be you'll travel back in time, cuz time is only relative. And if you happen to fall in love while time traveling at least you can go back to see her. Spread through out the book are actual photographs of NYC at the time that the main character travels back to, lends a bit of realism to the book. Very interesting story.