Official WordPress developer resources including a code reference, handbooks (for APIs, plugin and theme development, block editor), and more.
http://code.tutsplus.com/
http://www.wprecipes.com/
InstantShift
Beautiful, free images and photos that you can download and use for any project. Better than any royalty free or stock photos.
自定义WordPress和 WooCommerce 开发
https://www.smashingmagazine.com/
是一个分享高分辨率图片素材网站,所有的图片均支持个人和商业用途,主要是日常生活图片。