Packt sent me an e-copy of “Developing Web Applications with Oracle ADF Essentials” by Sten E. Vesterli asking me to review it. The book is a pretty good and probably rather unique book which covers the Open Source version of the **Oracle**   **ADF library**. This does not mean the book is only for “open source” ADF since everything you can do in this book you can also do with regular ADF instead it means it covers using Adf with non-standard technology such as GlassFish, Mysql and so on and so forth.