Nik is an expert on mycology and has authored a number of books that celebrate the diversity of the microbial world. In his research at Miami, he has pioneered the use of high-speed video microscopy to understand the explosive mechanisms used by fungi to launch their spores into the air.

Nik’s first book, Mr. Bloomfield's Orchard, was published in 2002. His latest book, Nature Fast and Nature Slow, was published in the summer of 2021, and he is researching and writing a new book on the effects of fungi on human health.