Helge Hall Jensen made his debut in 1927 with the comic strip 'Hilarius Petersens Radiooplevelser', that appeared in the daily Politiken's radio section. He also contributed to Politiken's Sunday supplement Magasinet. Then in the 1930s, Hall produced comic strips like 'Bulder og Bum + Minus' in Ugebladet and 'Per Pengeløs' in Fritiden. In 1934 he started 'Storebror og Lillebror' in Hus og Hjem, and this strip ran until the 1950s.
In 1935, Hall created 'Kjukken i Fritiden', a series that ran until the mid-1940s. Hall's longest running serial was 'Hans og Grete'. It began publication in Nationaltidende in 1947, and was syndicated to other papers by P.I.B. Hall drew this strip for 36 years, and for 14 years, he additionally made 'Nullerten' in Socialdemokraten (starting in 1949). 'Hans og Grete' was continued by Frank Madsen after Hall's death in 1983.