These are simple shelves that are unusual and would be easy to replicate as a DIY project. Buys some black brackets and have Home Depot cut some higher quality wood for you. Next stain the wood to your preferred shade and mount to wall.
painted ikea shelves (I was just looking at these very same shelves yesterday on ikea's website. They're not too bad pricewise as far as shelving units go, and there are many pieces for tons of different combinations for a living room / home office / craft room!)
Hold on Tight bookshelf by ColleenAndEric.com - Even in the digital age, we all still have personal libraries of books we just can't let go of. Use the Hold on Tight bookshelf to keep your most treasured books upright, on display, and close at hand. A brightly-coloured aluminum cube and oversized wing nut serve as a sliding bookend which can be adjusted and secured wherever it is needed, whether your book collection is growing or shrinking. Offered in Beech, Walnut and Oak. (41"L x 11"H x 8"D).