One job for female school leavers that was particularly common in the 1950s and has completely disappeared now, is that of the 'shorthand-typist' cum 'secretary".
Before the digital age which led to professional men typing their own letters and documents, they always had or shared a shorthand-typist or secretary who typed for them. Such men would never type their own letters! They was not expected to know how, and it would have been beneath their dignity anyway,
There was a difference between shorthand-typists and secretaries.
A secretary was better paid and was expected to answer phones, file, keeping diaries, and be at the beck and call of her boss. She would also be a trained shorthand-typist. (Much the same job exists today but the job title has changed to Personal Assistant or Administrator.)
Shorthand-typists, just took dictation and typed letters and documents, often working in a pool with other shorthand-typists.
Whenever a man wanted a letter sent, a shorthand-typist would be called into his office, notebook and pencil in hand, and he would dictate the letter at normal speech speed. She wrote it down in what was known as 'shorthand' and took it away to type on her manual typewriter.
Once a short-hand typist had typed a letter or document, she normally placed them inside a hard-covered book, designed for the purpose, with each document separated by a page. This book was presented to the boss, who checked everything and signed the letters.
If there was a mistake or he had second thoughts, an entire page often had to be retyped. With single letter corrections, though, there were special strips of white-coated paper that could be rubbed over the wrong letter to cover it with white and effectively erase it. Then the correct letter had to be typed on top. It was normally near impossible to align the document in the typewriter so that the new letter was in line with the rest of the typing, but no-one tended to be particularly critical because these mistakes were so common.
Training as a shorthand-typist took a year after leaving school, usually at the local technical college. There was no shortage of places, just as there was no shortage of jobs for shorthand-typists.
There were several versions of shorthand, and although I never learnt one as I never was a shorthand-typist, I am full of admiration for those who did. It seemed and still seems very difficult to me, although numerous women managed it.
The typing was 'touch-typing' which meant that the typist was not to look at the keys while she typed. This was so that she could keep her eyes on her shorthand notebook. The skill of a typist was measured in terms of how many words per minute she could type.
I did teach myself to touch type from a book in the 1960s and the skill has been extremely useful to me. In my view, in this digital age, touch typing ought to be taught in schools as a compulsory subject for both sexes.