Need recommendations from the community. What is the best resource that you would recommend for a newbie to learn Visualforce? That includes YouTube,books, websites, blogs, podcasts, etc.

Hi all,

I'm using VisualForce for an intake survey. The first part of it is relatively easy. This is the code for First Name.

<apex:inputfield value="{!Contact.FirstName}" />

However, I can't find any guidance on how to ask a yes or no question in the intake. I would want to limit it to yes or no. Not allow anything else like "working on it" or "almost."

Anyone know of a possible answer?