This is an amazing painting. Of course it can't exist in the real world but the sheer creativity is amazing to look at. The base is merging with the first level. At each levels, you can see a different doorway opening (through different doors). Well it certainly is a dream library. Consider the fact that you can actually read while sitting on a door that opens to space, sea, woods, sky etc. Who would not want to sit and read in such a library?