My first website about plant photobiology started around 1997 or so under the name of The Plant Photobiology Notes. That was 29 years ago! It was written manually in a text editor and later using the HTML editor DreamWeaver. In 2009 I started using the Wordpress server of the University of Helsinki, my employer. I retired in 2024, so I moved this website to Quarto and to a new URL. As with my other sites, I will be selective, and transfer only posts that remain of some interest, and when needed I will update also the content. There are 115 posts to check and fewer to transfer.