We have lot of books for you to enjoy the journey of Salesforce. Let’s start with a few good ones:
|Salesforce CRM: The Definitive Admin Handbook by Paul Goodey
A practical guide through which you will discover how to set up and configure the application.
|Advanced Apex Programming for Salesforce.com and Force.com by Dan Appleman Third edition
This book is intended for developers who are already familiar with the Apex language, and experienced Java and C# developers who are moving to Apex.