I was in Amsterdam recently and bought this guide at Borders. It has some foldout maps and talked about top attractions, transportation, discounts, etc. About $10.
Eyewitness Top 10 Travel Guide.
http://www.amazon.com/Amsterdam-Eyew...e=UTF8&s=books
I purchased a 48 hour visitor card (includes free admission to some museums, free public transport, canal tour). See details here, available in 72 hours, too.
http://www.amsterdamtourist.nl/en/ho...rdam+Card.aspx
Have Fun.