My favourites: Most well known starter theme (All twenty* themes are based on it): http://underscores.me/ http://underscores.me/ More starter themes, includin

My favourites: Most well known starter theme (All twenty* themes are based on it): http://underscores.me/ http://underscores.me/ More starter themes, including Bootstrap ones. http://www.hongkiat.com/blog/starter-wordpress-themes/ http://www.hongkiat.com/blog/starter-wordpress-themes/ Some good documentation on some recurring subjects. Published by an author I hold in high regard: https://wp-root.org/ https://wp-root.org/