If you're looking for tips on finding parts, go to out other help page:
Filter by category
Choose the categorization you prefer by clicking on it (B). Then click on the category or color name to go directly to the parts in that category or color. Categories with an arrowhead on the left contain sub-categories. Click on the arrowhead to expand the super-category and see the sub-categories. Clicking on the super-category leads to the first parts in the first sub-category.
Filter by color
The main purpose of the Building Palette’s Color Palette (E) is to choose the initial color for your bricks but it can also filter the parts by color.
At the bottom of the palette (E), there’s a checkbox Hide Unavailable Parts in the Selected Color that, when checked, hides the parts that are not in any inventory in the BrickLink catalog.
Filter decorated parts
Decorated parts (both printed and stickered parts) can be hidden or shown with this button (F).
The decorated parts are visible when the button is striped, and they are hidden when it’s plain.