User Guides and Manuals can generally be found at the manufactures site. Go to
www.canon.com. Select the country. Got to DOWNLOADS>CUSTOMERS. This will take you to the Downloads Library. From there you will plug in the Category (Digital Camera), type of product (PowerShot A Series) and the Model (PowerShot A 640). You will now be in the Downloads area where the User Guides & Manuals are available. They are in PDF format so you will need Adobe Reader on your computer. Once you download the pdf you need you can print it out.