If you care about jobs in Birmingham, vote 'In'.
250,000 jobs in the West Midlands, one in 11, are linked to trade with the EU, which took £12 billion of exports from the region last year - almost half of all exports.
In the last five years, EU countries have invested in 228 West Midlands' projects, supporting over 16,000 jobs.
This region is one of the biggest beneficiaries of EU regional funding.
This leads to vital investment in infrastructure, £340 million for local business start-ups and over £300 million in apprenticeships for young people.
Examples of investment received include £26 million for building the Millennium Point, £3 million for University of Birmingham's biomedical hub and £3 million to renovate Town Hall Birmingham.
Europe also provides cheap loans, including £107 million to build the Midland Metropolitan Hospital, £75 million to upgrade facilities at University of Birmingham and £340 million for Jaguar Land Rover to develop hybrid drive trains.
And Europe funds research, such as University of Birmingham's noble attempt to combat infant liver cancer.
In the West Midlands, the European Arrest Warrant has been used to remove 396 criminals and bring 42 criminals to face justice in the UK since 2010.
The EU is also there for the nice stuff.
Thousands of endangered species and dozens of vulnerable natural habitats are protected from over-development by EU nature laws.
In the West Midlands, protected areas and habitats include the Whixall and Bettisfield Mosses, Downton Gorge, River Wye, Bredon Hill, Brown Moss, River Clun, Cannock Chase and Ensor's Pool.
Protected species include the otter, white-clawed crayfish, great crested newt, bats, dormice, water voles and red squirrels.
EU laws ensure our shared wildlife, including migratory birds, enjoy protection across Europe.
The EU also protects fine regional produce from cheap imitation, preserving such delights as Stilton cheese and Worcestershire cider.
EU membership also protects workers' rights such as paid holiday and parental leave.
These are just a few examples of what the EU does for the West Midlands. Would a hard-right Boris Johnson Conservative government post-Brexit really protect all this?
I'm an optimist: Liberal Democrats are optimists. As the biggest gainers in the local elections, my party's optimism was vindicated.
We want to look forward, not back. This is about future generations who will thrive in a global economy and green environment.
This region has adapted to change. And this is an adaptable country that can thrive, innovate and lead in an open world.
Tim Farron is leader of the Liberal Democrats