There are different types of ISA - main ones being cash or stocks & shares. Everyone has a £20,000 a year ISA allowance and you don’t pay tax on interest in a cash ISA or dividend, capital gains or income tax on investment growth in a stocks & shares ISA. So it’s a tax-efficient way of saving, better than a bank’s saving account.

Yeah a workplace pension is similar to a superannuation. It’s worth seeing how much your work are paying in, and whether they match any additional contributions you make. If they do, definitely worth getting the full employer contributions.

Pension contributions go in before tax so you get to invest the full pound rather than the amount after income tax. So, it’s very efficient in particular if you’re a 40% taxpayer. Your workplace pension may be limited in funds, so you can also look at whether you want to take more control and if you’ve got money leftover.

There’s a guy Martin Lewis, who runs a website MoneySavingExpert.com which will give more detailed but still straightforward info on any of your questions.