There is a lot of parts to this desk so assembly took a lot longer than expected. The instructions manual is a bit confusing because even though the woods and assembly screws are labelled, they don't labelled all the screws with the corresponding parts when following the manual. However, if they don't labelled the screws it will displayed an outline of the screws that need to be placed. But I do have to mentioned that outline of the screws  displayed on the manual are rather small so you really have to get close to see which screws belongs with the part you're working with as they sometimes don't labelled all their parts. But in the positive side, I love the look of desk and I am excited that I can have the option to turn the one side to create a L-shaped or fully extend it out. The shelfs are a bit smaller than I expected but that's on my part and not the seller's.