You will need to install a number of additional libraries into your IDE in order for some of the projects to work. Check the library section of the book for more info. For some of the libraries you will have to create a folder and put the files in, for others unzip and place the entire folder in the library directory.
Please note all of the libraries work with Arduino IDE 1.0.5. Libraries are continually updated by the Arduino community so please check online for any variations for use with future IDE upgrades. All links are external to this site and have no connection with the Arduino Project Handbook:
Here’s an alternative link to the tone library link that works with project 13
RFID.h link (Copy these files into a folder named RFID in the library folder)
LCD Ic2 Library (this can be used with the RFID project) Link