The NHS have a good overview and video on tantrums, covering why they can happen and how to deal with them well

NCT, a UK pregnancy and childcare charity, take a slightly more in depth but still relatively broad look at tantrums with some specific strategies for dealing with them

Parent Talk, a parental advice service, takes a brief look at some preventative measures to help your child be less tantrum prone  

The NSPCC, the Uk’s leading children’s charity, takes a closer look at how to deal with tantrums with some really great do’s and don'ts

It might seem like a strange inclusion but this BBC article about sign language might help diffuse your little ones tantrums, since if they can communicate they’ll be less frustrated