Perhaps one of the most underutilized areas of Lightroom is the Detail panel. Nonetheless, it offers some very useful functions that can make a large difference in the final look of your photos, and it's well worth getting to know how all the features work. This helpful video will show you all you need to know.
Coming to you from Signature Edits, this great video will show you all you need to know about sharpening and noise reduction in Lightroom. Many photographers tend to leave these sliders at their default settings (I know I certainly did for a long time), but learning what they do and taking the time to adjust them for each photo can make a big difference in your images, especially if you're shooting at high ISOs or if you'd like to bring out a bit more detail in your photos (who doesn't want that?). I particularly recommend small tips like holding down the option key while moving the masking slider. Lightroom's built-in visualization tools will make it much easier to dial in the exact look you want instead of trying to eyeball everything without assistance. Check out the video above for the full rundown.