WOW probably my favorite museum ever
If you are a student and show your ID, entrance is free! Take the opportunity to look at all of his work. Even the 7-10€ charge is worth it.
This museum has a great collection spanning Picasso's career and development as an artist. While many of his most famous works are housed elsewhere, this museum has a lot of great prices, including an amazing collection of his study of 'Las Meninas'. Insider tips: (1) book online well in advance - people without tickets waited in line for hours, we walked right in (2) get the audio guide - there is very little written near the paintings to explain what you are looking at.
If you're an art lover you must see the gems that this museum has on exposition. Well worth the queues.
A must for visitors to Barcelona who appreciate fine art and history. Worth any wait, and affordable as far as attractions go.