The model is made for anti-aliasing the stack is not collapsed.
Anti-aliasing modifier is on (render 1 iteration).

Polys – 135242
Verts – 158 873

The set includes three bookshelves with decorative filling including:
1. Vase 1 – https://www.housewolf.nl/nl/globe-vase-xl.html 
2. Vase 2 – https://www.housewolf.nl/nl/matte-beige-vase-9.html 
3. Vase 3 – https://www.housewolf.nl/nl/black-metal-vase-9.html 
4. Vase 4 – https://www.housewolf.nl/nl/clear-round-vase.html 
5. Vase 5 – https://www.housewolf.nl/nl/black-metal-vase-8-121464966.html 
6. Candlestick – https://www.housewolf.nl/nl/venade-l.html 
7. Lamp – https://www.housewolf.nl/nl/lamp-standard.html 
8. Sculpture bird
9. Candlesticks
10. Candles
11. Books
12. Dried flowers
13. Tray
14. Diffuser
15. Box
16. Book holder
17. Clock

For Corona render it is recommended to install a version not lower than 1.5 since the glossiness of the materials is adjusted taking into account PBR.