Great pictures will get pinned to Pinterest and thus drive traffic to your blog so big, sharp pictures are a must. If you are a blogger and not on Pinterest, you should really consider signing up for an account. It’s free! If you need some tips on how to take better photos, check out this post.
First you need to know the width of your sidebar. Mine is approx 280 pixels so I resize my photos to 250 x 250 in Picmonkey. Simply use the “crop” tool and crop to a square. Then use the “resize” tool to scale your image to whatever size you need.
Now go add some beautiful images to your blog and watch your traffic increase!