I wish to learn how to design websites professionally, but I don't know where to start and what to read. I already know HTML and CSS, but I want to be able to judge the quality of my designs so that I can produce better stuff. If you can recommend any textbooks, websites or anything with that kind of information I would greatly appreciate it.
Just lots of practice, doing as many Websites as you can and learning as you're doing. I'm not a professional designer myself, but have worked with someone who is excellent at designing Websites. I helped to moderate a Forum of his as well as change some templates from old HTML to HTML5. That gave me a real close-up in the world of templates and the designs I favoured. At the time I was using Notepad++ and Mozilla Firefox to do the translations. If you're very serious, I'm sure this guy will help you. I'll PM you his details.
If You know Html and CSS already all need to do is learn how to use photoshop! sdownload a trial version and google tutorials on web designing and you will get better as you keep trying
well thats how i did it.
ps: ill post a tutorial for you soon
try Joomla platform - very easy as a start up and highly recommended. Once you made your Joomla site then you can experiment or play it around how to edit.
Sometimes we just need more time because as they say Rome is not build in one day.
Keeps practice and you can be a professional developer.