Setup Blog

1. Navigate to Settings → Reading
2. Select “A static page (select below)”
3. Set the “Post Page” option to your blog page
4. Save the settings

Change Blog Layout

1. Navigate to the “Pages” admin tab
2. Edit the blog page
3. Scroll to the “Blog Layout” option field and choose a style
4. Save the page

Change excerpt length

Add a numeric value under Appearance → Customize → Theme Options → Blog at the “Excerpt Length” setting