By Chris Dillow and Keith Bowman , 31 January 2012
23-year-old Alex Marshall has only been investing for two years, but is quite accepting and open to risk as he intends to keep investing for a number of decades. He aims for long-term growth while maintaining exposure in a variety of sectors. He says: "I have started investing at quite a young age, so I would like to have some advice about how to manage and build a growth portfolio. My portfolio is held within an individual savings account (Isa). I contribute £50 a month to each of the funds."