To display all the fields of sObject using Apex & VF

<apex:page showHeader="false" Controller="FieldsClass">

        <apex:DataTable value="{!data}" var="d">

             <apex:column headerValue="Field Name">

                 {!d}

             </apex:column>          

         </apex:DataTable>

</apex:page>

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public class  FieldsClass {

     public map<string,Schema.SObjectField> data {get;set;}

   

     public  FieldsClass (){

         data = Schema.SObjectType.Book__c.fields.getMap();

        }

    }