Highlights is committed to be a respectful forum for its participants, free from any discrimination or harassment of any nature, particularly when abuse of power is involved. All Highlights attendees are expected to behave accordingly.

If you experience or witness discrimination, harassment or other unethical behavior at the conference, we encourage you to seek advice and remedy by consulting with the SafeToC counsellor of Highlights: Sylke Ernst.

The local organizers are entitled to remove registered participants from the conference (without refunding the conference fees) if they are deemed to pose an ethical risk to other participants.

Highlights'23 is an event that will take place on-site (barring unforeseen circumstances), and the preferred form of participation is in person. Remote attendance via a video stream will also be offered, but with limited possible interactions for these participants.

Before coming from far away, please review how your trip and international flights are contributing to climate change. We encourage you to take the train as much as possible, possibly taking the opportunity for visiting colleagues on the way and thus decomposing the travel into smaller pieces.

More generally, we encourage you to make the most of your stay. This means extending your journey to the previous and/or following weeks for more scientific activities in Kassel and around. Several initiatives are here to help you in this task:

• You can participate in the Highlights Collaborative Research Week (HCRW), July 17-21, the week before highlights, in Kassel). We especially encourage you to come to the HCRW if you attend ICALP'23, which happens just before the HCRW, in Paderborn.
• You can attend ICALP'23, which takes place in Paderborn, July 10-14.
• You can attend CAV'23, which takes place in Paris, July 17-22
• You can use the Highlights Extended Stay Support Scheme (HESSS) for finding collaborators and organising visits.

In the following, you can find some information on how to get to Northern Hesse, depending on the mode of transport.

Getting around Kassel can be done on the trams and buses of the Kasseler Verkehrsgesellschaft, by foot or with one of the 400 bikes that can be rented (for more information see nextbike). The Highlights conference itself takes place in the campus centre near Holländischer Platz. You can find a list of all relevant locations of the university here.

Normally, you require a visa and residence permit to enter Germany. Nationals from EU memberstates, Iceland Liechtenstein, Norway and Switzerland are generally not required to obtain a visa to enter Germany. Similarly, nationals from Australia, Japan, Canada, New Zealand, South Korea and the USA do not need a visa to enter. See here for a full list of countries enjoying visa exceptions. If you require an invitation letter, please contact Stefan Göller and provide your full address, arrival and departure date.

Highlights'23 also organises an extra week, the Highlights Collaborative Research Week hcrw from July 17th to July 21st, at the University of Kassel.

Participants to Highlights can register to this week, and are then free to organise any scientific activities. It is up to you to decide what this week should be. Possibilities can be to

• meet someone in particular
• organise or attend a seminar/workshop/reading group
• gather for solving open problems

Highlights organisation is offering the opportunity, the working space and support at the university, and some web-tools for the scientific organisation.

We encourage participants to propose activities in advance. Please contact the program chair (Supratik Chakraborty) and the organisation chair (Stefan Göller) via Zulip to communicate your proposals.

The Highlights Extended Stay Support Scheme (HESSS) is an incentive for collaborations between participants to the conference and researchers working in research units reachable by train from the conference locations. The objective is to foster interactions with low carbon footprint. The mechanism is as follows:

• Research units wanting to participate in the scheme are listed below. These units are willing to fund collaborations between highlights' participants and their members.
• The pair of a Highlights' participant and a member of one of a listed research unit submit a proposal which takes the form of a mail containing names, period of collaboration, and a sentence describing the activity planned. It has to be sent to the HESSS contact person of the research unit.
• The decision of acceptation is up to the research unit. It may be in particular subject to scientific scope, number or requests, or, eg, favouring distant participants.
• The only strict rule is that the visit should be around the moment of Highlights, and no plane should be taken by the visitor between Highlights and the visit.
• Research units interested in participating in the program should contact us through the appropriate channels on Zulip.