I'm doing Catalan classes in Spain and could not find a good quality dictionary in the bookshops here. This has all the words in it that I look up, which is quite surprising considering its small size (double size of a pocket dictionary. Easy to carry and lightweight.
Common words seem to be missing, for example, 'moixeron' meaning 'mushroom'. Now the Catalan word may be 'moixernon' - I tried to look it up because I wasn't sure. Other missing words appear to be: 'moixiganga' 'maroma'.