- Hagberg took the theological master degree / University in Oslo ( UiO) in 1967 and was then a naval chaplain in Ramsund . Hagberg then worked as an editor and youth pastor in Norway’s Christian Youth Association / YMCA – and later as a trustee/vice-president in the European YMCA. Hagberg was substitute priest on Svalbard in 1970/71 and head of the hospital chaplaincy service at the University Hospital in Tromsø 1971-1976 before he become student priest at the University of Oslo in 1976. From 1983 he was resident chaplain in Oslo Cathedral. and from 1987 – 1989 prosject garantee in LoR / The Norwegian Leadership Development Council.
In the late 1980s, Hagberg began working with management development and Coach for larger Norwegian companies. – As a management developer, Hagberg has, among other things, been responsible for the development of the communication tool SGL ( Interaction, Group Growth and Leadership Development ). [ 4 ] SGL uses, among other things, a color language to describe communication. [ 5 ]
- Hagberg has published a number of books, including DEATH without a sting (1977), IN THE SAME BOAT (1980) and GODTATT av bare nåde /Accepted by grace alone (1982). In 2008, he came to the fore with the book “A year in Ellen`s life, – about dyslexia and the third eye.” , which was about the experiences of union representative and employee Ellen Strøm in the Dyslexia Association . [ 6
- As an eighty-year-old, he published the book: “With the sky as a roof and nature as an altarpiece” Petrus Publishing House 2019) about the nature’s cathedral on Sangefjell in Hallingdal. (www.naturkatedralen.no) – The purpose of the book was to tell about the Natural Cathedral’s rich symbolism, form and message for a new generation of cabin owners in Øvre Hallingdal. The Natural Cathedral, which was begun in 1987 and consecrated and blessed by Bishop Sigurd Osberg in 2001, was created on a plot of land given by the landowner Torstein Breie. At the head of the project were Hagberg and a few other enthusiasts and cabin owners on Sangefjell.
Hagberg is a member of the Norwegian Nonfiction Authors’ Association / NFF, and The Norwegian Priest Association / PF
- In 2016, Hagberg moved to Portugal with his Brazilian family – as commutes, to be able to continue as Coach and CEO for Kreativitetshuset as / Norway.
In 2018, he co-founded The Norwegian Club Portugal ( Clube Noruegues em Portugal ), and at the same time became the club’s president for the first four years. With support from EEA-Grants, he led the project “info-BANK” 2020 – 2022, the purpose of which was to create an immigrant lexicon for Norwegian “residencia” in Portugal.
- Death – without a sting: About grief work and euthanasia . Country and Church/ Gyldendal Publishing House, 1977 (revised edition 1980)
- In the same boat: On group growth and personal development Country and Church/Gyldendal Publishing House, 1980
- Accepted by only grace Land and Church/Gyldendal Publishing House, 1982
- When Life Bleeds: Sketches of Pain, Despair, Growth and Hope . Luther Publishing House, 1985
- SGL – for Interaction – Group Growth and Management.- Competenza Publishing House 1998
- A year in Ellen’s life: About bullying, dyslexia and “the third eye” Kolofon Publishing House, 2008
- The natural Cathedral at Sangefjell. – Petrus Publishing House / 2019
- www.SGL-Leadership.com – Hagberg start up publishing – for free use – his thoughts and experiences and models for management and leadership development / 2024