I am sorry, but I cannot rate this book as highly as have the previous reviewers. I bought this book because there seemed to be no other book about the Corona SDK, and because the existing reviews were very favorable. However, after trying to use it for actually using the Corona SDK, I have found it to be of very limited help. The Corona SDK is based on the language Lua, and that language applies many concepts from modern computer science, concepts difficult to understand, and not treated at all in this book. This book will enable you to get some apps up and running quickly, but you will soon discover the need for information simply not available in this book.
I think this book is not only inadequate, but misleading. Consider, for example, the section on tables on page 51. Understanding how tables are used in Lua is essential to understanding Lua. This book says that tables contain indexed elements, and that when the index is a string the element is known as a property. Now Jonathan Beebe of Corona, in his tutorial "Understanding Lua tables in Corona SDK", describes tables as consisting of key-value pairs, the key being the location of the value in the table, and the value being anything, including functions or other tables. The keys can be numbers or strings of characters. The definition of tables in this book is at best inadequate if not misleading.
The most helpful information I have found is the following:
Search for "Corona Labs blog Jonathan Beebe"
Lua: Programming in Lua, Second Edition, by Roberto Ierusalimschy
The Programming in Lua book is a gem. However, there is a still need for a text about the Corona SDK which explains clearly how to use it.