You can easily install a WordPress theme and you have easy access to it.
Install a Theme using WordPress Admin Theme Search.
Step1-First of all you login to WordPress Admin.
Step2-Click on Appearance » Themes
Step3-Here you can select the Featured WordPress themes, Popular WordPress themes, Latest WordPress themes. which you want to select and you can also search the theme in the right side.
Step4-After selecting, click the install button. then click on Activate button.
Your theme is properly installed.
Install a Theme by using Upload Method
Step1-First you need to download themes from Google.Search your theme and click on download button.
Step2-You get a zip file of the Downloaded Theme.Go to your WordPress admin dashboard then click Add new button.
Step3-Click on Upload theme button.click on Choose file.Select theme from your computer and click install now button.
Step4-Click on Activate button.
My theme is properly installed. agency-lite is my downloaded theme.