Unfortunately 1/2 way through building this bookcase we discovered the pre-drilled holes were in the wrong place for the support bracket.  I am thankful I was building with someone who had a full drill set & an understanding of carpentry or I would not have been able to build the small shelf set.  It’s very cute now that it’s built but it took a medium to high level expert to build and over 2 hours fire to the manufacturing issue.