On 2nd - 5th September 2013, the University of Hertfordshire was delighted to host Exoplanets and Brown Dwarfs: Mind the Gap. This year represented a milestone of sorts as the 18th anniversary of the first discoveries of both planets around Sun-like stars and brown dwarfs. The last 18 years have seen the study of these fascinating objects flourish into diverse and exciting astronomical fields. However, as these scientific siblings reach adulthood, there is a danger of missed opportunities as they drift apart. This successful meeting brought the brown dwarf and exoplanet communities together to explore common science questions, share exciting results, and foster collaboration to overcome shared challenges. On these pages you can find PDFs of many of the invited and contributed talks, and posters, along with a few photographs of the conference.