How to Add AdSense to a WordPress Theme

Install Advertising Manager
1. Navigate to your WordPress blog and log in to your administrative panel.
2. Click 'Plugins' and then click 'Add New.'

3. Type 'Advertising Manager' into the search box and click 'Search Plugins.'
4. Click 'Install Now' to install the Advertising Manager plug-in.
5. Click 'Activate Plugin' to enable Advertising Manager and begin using it to add AdSense code to your WordPress theme.
Import AdSense Code
6. Click the 'Ads' button that now appears in your WordPress administrative sidebar. You will be presented with an input box that you can use to add Google AdSense code.
7. Navigate to Google AdSense in a new tab or window and log in to your account.
8. Copy the AdSense code for an existing advertisement or create a new one if needed.
9. Paste the Google AdSense code into the Advertising Manager input box and then click 'Import' to add the AdSense advertisement to your WordPress administrative panel.
10. Title your advertisement and adjust any other settings related to the ad and then click 'Save.'
Add AdSense Ads to Theme
11. Click 'Appearance' and then 'Editor' in your WordPress administrative panel to edit your theme.
12. Select the theme element where you would like to add the AdSense advertisements.
13. Type '[ad#name]' replacing 'name' with the name of your AdSense ad in the position of the WordPress theme element where you want the advertisement to appear.
14. Click 'Appearance' and then 'Widgets' to add a simple advertising widget to your WordPress theme sidebar.
15. Drag the 'Advertisement' widget to the position on your sidebar where you would like the advertisement to appear and then select the ad that you'd like to display.