On June 18-23 2017 we will celebrate in Budapest the 70th birthday of Imre Bárány. Here is the webpage of the conference. For the occasion I wrote a short paper with problems in discrete geometry, mainly around Helly’s and Tverberg’s theorem. This represents

one of the areas on which Imre Bárány had immense impact. Here is the paper: Problems for Imre Bárány’s birthday.

## Happy birthday, dear Imre

(Our 1999 picture was taken by Emo Welzl.)