Tab A into Slot B-3

My sister is one of the best gift-selectors ever. She puts a ton of thought into each and every gift, and manages to find just what people would like. For my birthday this year she bought me a lovely booksellers bookcase -- you know the kind with a middle angled shelf?

It's quite lovely, but I'm glad that I have the Amazing Fixit Husband to put it together. The instructions are in some odd Chinese-English translation, and there are really only three steps. Step 1 is pretty easy. Step 2 is...well, the exploded diagram is very nice, but it's the most complicated one seen for a simple piece of furniture. Perhaps diagrams to assemble rockets need to be this complicated. Click to have a larger look. It's rather impressive.