The book covers all the new features of Delphi 2010 for Win32, from Extended RTTI to new IDE features, from Windows 7 support to the improved DataSnap architecture. This is a brand new book, there is no overlapping material with the Delphi 2007 Handbook and Delphi 2009 Handbook (which you can consider buying along with this book in printed or electronic format). The Delphi 2010 Handbook is expected to have about 300 pages covering exclusively new Delphi 2010 features. There is no introduction material or anything like that. The book is for developers who use Delphi 2010.