This book is primarily for software developers. I assume you have a basic understanding

of Internet technologies and programming techniques. Code samples are scattered

throughout the text and are provided in numerous languages, so fluency in languages

such as Java and PHP will help you get the most value from the book. All the code samples

in this book, as well as additional code that isn’t included in the text, are provided

in the Source Code/Download section of the Apress website at www.apress.com.

If you are a business owner or entrepreneur with little to no programming experience,

however, there is still a significant amount of information you can glean from these

pages. While a good portion may be too technical for your interest, this book provides

details on almost all PayPal technologies, and as such can give you a better sense of the

type of work that would need to be done in order to integrate PayPal into your grand

schemes, even if you ultimately won’t be the one hacking out the code.