I'm going to admit though, I've really been struggling with this...because I pretty much keep every herb and spice on hand. As much as I cook, I go through a lot of herbs and spices. But I've put together a few lists, depending on your circumstances and cooking level. Now keep in mind, these are the herbs and spices I would use based on my cooking style and recipes. So if you follow my blog and use a lot of my recipes, these will be the most used herbs and spices.
I think I've covered the basics. I know it seems like a lot, especially if you're a beginner cook or just starting your kitchen collection. If you really love to cook, I recommend you just buy items as you need them and over time your collection will grow. This is where meal planning and groceries lists really come in handy. As you plan your meals for the week, you'll know the items you'll need and will be able to purchase them ahead of time. Good luck and please don't hesitate to ask any questions. Also, if any of you pro-cooks out there notice something I've left off the list or an item you really feel is a "must have" in the kitchen. I'd love to hear about it!