I samlingen
| 2023 | How to talk so teens will listen & listen so teens will talk | |
| 2017 | Hvordan snakke så barn vil lytte & lytte så barn vil snakke How to talk so kids will listen & listen so kids will talk | |
| 1995 | Søskenboka : håndbok i kunsten å løse konflikter mellom barn Siblings without rivalry |