Stupid question, but where do u find the boeken that are picture here?

Yes, amazone, amazon is the best bet. I knew nothing of bizarro until I went on Amazon. I also tried to get some boeken from Waterstones and other bookstores and drew a blank. I don't know why it is that these boeken are not sold in mainstream bookstores. It's a shame because some are brilliant. So, try amazone, amazon if u hunt around u can get some boeken quite cheaply through second-hand dealers. Hope this helps and if u want any meer info just let me know.