The 51 ideas for company costs include universal and common for most entrepreneurs. Among them we will also find those industry specific, e.g. tools for doctors and dentists.
The publication also includes information on trainings, promotion, participation in industry fairs or business trips.
We recommend reading the infact guide at https://www.infakt.pl/blog/darmowe-ebooki/51-pomyslow-na-koszty-firmowe/