Hello world. Have you ever seen a great font that it's already rendered and it's name is nowhere around? Have you spend a thousand of hours looking for that holy font that finally complete the design you've been working on for months? Have you roll on the floor while crying for hours when you give up to find it?... Well, no more my friends.
Here's a little guide I made and that you can use to always find all the fonts you want to.
1_To begin, you have to find an image of the font that you want to identify. If the font is selectable text on somewhere, you must move it to an image (taking a screenshot and cutting the text area will work).
At this point you may want to have some considerations:
Try to get the text as horizontal as possible.
Letters should be around 100 pixels tall in your image. Less could not work.
Make sure letters aren't touching each other. Use the zoom tool and edit your images as accurately as you can and, if possible, space the characters apart more than normal.
Use as many characters as possible, and use characters that looks unique to that font (diacritics will work greatly).
Save it with the best quality (300 DPI, TIFF format, grayscale).
2_Now, we have to upload our image to the search engine. WhatTheFont by MyFonts is a great choise, but WhatFontis it's fine too. Both works really good, the mainly differences are that the first one is more accurate, while the second one will show a much bigger number of alternative results.
I recommend using both simultaneously and compare results.
3_Once the file is uploaded, we only have to look among the results 'till we find the correct font.
And that will be all, it's that easy. Once you found your font you can keep looking for similar ones with tools such as Identifontand increase your knowledge. The sky's the limit!
Things to consider
Always remember that this is not magic, so don't expect to always get a result 100% accurate. As long as you keep using images with good resolution and a decent size, you will have more probabilities of nail the exact font.
Also, at some point you'll (probably) find yourself trying to identify an exclusive non-commercial font. In these cases, we must settle for the most similar one (or contact the designer and try to reach an agreement to use his/her creation on our works).