Sales Cloud — Essential Features:
- Leads: Capture and qualify leads
- Opportunities: Track sales pipeline
- Accounts & Contacts: Manage relationships
- Forecasting: Predict revenue
- Einstein AI: Predictive lead scoring

Service Cloud — Essential Features:
- Cases: Track customer issues
- Knowledge Base: Self-service articles
- Omni-Channel: Smart case routing
- Service Console: Agent workspace
- Einstein AI: Case classification

Marketing Cloud — Essential Features:
- Email Studio: Design and send emails
- Journey Builder: Automation workflows
- Audience Builder: Segmentation
- Social Studio: Social media management
- Advertising Studio: Ad campaigns

Commerce Cloud — Essential Features:
- Product Catalog: Manage products
- Shopping Cart: Online checkout
- Order Management: Track orders
- Pricing & Promotions: Discounts
- B2B & B2C: Both supported

Experience Cloud — Essential Features:
- Community Builder: Drag-and-drop UI
- Knowledge Articles: Self-service
- Partner Portals: B2B collaboration
- Customer Portals: Support and engagement
- Lightning Templates: Pre-built designs

Use Cases:
- Customer support portals
- Partner collaboration hubs
- Employee intranets

Salesforce Platform — Key Concepts:
- Lightning Platform: Build apps without code
- Custom Objects: Create your own tables
- Workflow Rules: Automate processes
- Process Builder: Drag-and-drop automation
- Flow Builder: Visual automation

Development Tools:
- Apex (code)
- Visualforce (pages)
- Lightning Components (UI)
- SOQL (database query language)

MuleSoft — Key Concepts:
- Anypoint Platform: Design and manage APIs
- API-led Connectivity: Reusable APIs
- Connectors: Pre-built integrations
- DataWeave: Data transformation

Heroku — Key Concepts:
- App Deployment: Deploy with Git
- Add-ons: Extend functionality
- Scalability: Handle large traffic
- Salesforce Integration: Direct connection

Use Cases:
- Integrate Salesforce with legacy systems
- Build custom web applications
- Extend Salesforce capabilities

AppExchange — Key Concepts:
- Apps: Pre-built solutions
- Components: Lightning components
- Flow Solutions: Automation templates
- Data Packs: Sample data

Categories:
- Industry Solutions (Finance, Healthcare)
- Functional (Sales, Service, Marketing)
- Integration (Third-party tools)

How to use:
- Browse categories
- Install directly into your org
- Configure for your business

Tableau — Key Features:
- Visual Analytics: Drag-and-drop
- Dashboard creation: Interactive dashboards
- Data Connectors: Connect to any data source
- Tableau Prep: Data preparation
- Tableau Public: Share visualizations

Use Cases:
- Sales performance dashboards
- Customer analytics
- Operational metrics
- Executive reporting

Integration with Salesforce:
- Direct connection to Salesforce data
- CRM Analytics (formerly Einstein Analytics)

Einstein AI — Key Features:
- Einstein Prediction Builder: Predict outcomes
- Einstein Discovery: Automated insights
- Einstein Lead Scoring: Prioritize leads
- Einstein Chatbots: AI-powered chat
- Einstein Vision: Image recognition

Use Cases:
- Predict which leads will convert
- Identify at-risk customers
- Recommend next best actions
- Automate customer service

Data Cloud — Key Features:
- Unified Customer Data: Single view
- Data Integration: Connect multiple sources
- Data Modeling: Build customer profiles
- Segmentation: Target specific audiences
- Data Privacy: Compliance management

Use Cases:
- 360-degree customer view
- Personalization at scale
- Audience targeting for marketing
- Customer journey analytics

Apex — Key Concepts:
- Classes: Object-oriented programming
- Triggers: Automate before/after DML
- Batch Apex: Process large datasets
- Scheduled Apex: Run on schedule
- REST/SOAP APIs: Integrate with external systems

SOQL (Salesforce Object Query Language):
SELECT Id, Name, Type FROM Account
WHERE Industry = 'Technology'

SOSL (Salesforce Object Search Language):
FIND {Salesforce} IN ALL FIELDS
RETURNING Account(Name), Contact(Email)

Visualforce — Key Concepts:
- Markup language: Similar to HTML
- Controllers: Apex classes for logic
- Standard Controllers: Built-in functionality
- Custom Controllers: Custom logic

Example:
<apex:page>
    <apex:form>
        <apex:pageBlock>
            <apex:pageBlockTable value="{!accounts}" var="acc">
                <apex:column value="{!acc.Name}"/>
                <apex:column value="{!acc.Type}"/>
            </apex:pageBlockTable>
        </apex:pageBlock>
    </apex:form>
</apex:page>

Lightning — Key Concepts:
- Components: Reusable UI building blocks
- Lightning Web Components (LWC): Modern, standards-based
- Aura: Older component framework
- Lightning App Builder: Drag-and-drop UI

Lightning Component Example:
<lightning:button 
    label="Click Me"
    onclick="{!c.handleClick}"/>

// Client-side controller
handleClick: function(component, event) {
    alert('Button clicked!');
}

LWC Example (modern):
import { LightningElement } from 'lwc';
export default class MyComponent extends LightningElement {
    handleClick() {
        alert('Button clicked!');
    }
}