Poster Guidelines

Poster Guidelines

Read the ePoster Guidelines Below


Deadline to submit: Wednesday, June 30, 2021 at 23:59 (Your Local Time). Submit hereNote: All presenting authors must register for the meeting in order for their abstract to be presented.


The ISTH will again be working with MULTIEPOSTER to upload all ePosters. Abstract Presenters will receive an email from MULTIEPOSTER with detailed information shortly with instructions on how to upload their ePoster. All ePosters will be available on-demand on the ISTH 2021 Virtual Congress platform.

Important Dates

  • May 19, 2021:
    Abstract withdrawal deadline

  • June 8, 2021:
    Abstract titles released (only confirmed participating abstract titles)

  • June 30, 2021:
    Deadline to submit posters

  • July 2, 2021 at 09:00 EST (U.S.):
    Full text abstracts are released (excludes late-breaking)

NEW for ISTH 2021! We will offer three (3) different types of ePosters.  Each accepted ePoster author will be notified of which ePoster type they have been selected for in their abstract notification letter.


  • Live ePoster: A live ePoster will feature the author live in a Zoom type format where attendees will be able to join to discuss the poster, as if we were live at the congress. The author will produce an ePoster for this. The ePoster will then be divided into slides, (one per section) and will be automatically pre-uploaded to the virtual room by MULTILEARNING. Each author will then be able to use the ePoster to discuss and talk with attendees. Since this is a live presentation of the ePoster, there is a designated time when these will take place.

  • Slide ePoster: A slide ePoster is where the author will prepare up to five (5) slides and prepare a 5-minute recording to discuss the abstract; in addition, the author will produce an ePoster. The author will not need to be available during the congress, the recording will be posted online for attendees to access and watch at their convenience.

  • ePoster + Audio Narration:  A ePoster will be developed using the below guidelines. Each author is strongly encouraged to add audio narration to each ePoster section, during the final review step. To learn more about this feature, see this demo: ePoster with audio narration on sections & embedded video and a tutorial on how to record your audio narration per section here (PDF) or here (YouTube). All ePosters will be available on-demand on the ISTH 2021 Virtual Congress platform.


Publishing via ISTH Academy
As an added-value service, all presenters who upload their ePoster via the MULTIEPOSTER platform will have their poster added to the ISTH Academy. By having your ePoster included in the ISTH Academy it will prolong the ePoster session experience and increase the visibility of your work for long after the meeting has finished.


Please Be Advised

Upload your ePoster file ahead of the deadline if you need to coordinate the audio recording in a timely manner.


Poster Upload Instructions

  • Poster Size: Your ePoster should be formatted in PowerPoint or PDF as a landscape/horizontal slide that is 16:9 ratio, NOT 4:3. Presenting in 4:3 format may cause your presentation to be distorted. (There is no file size limit)

  • Do not password protect the file

  • Only upload one (1) slide only or 1 page PDF

ePoster Format: 

  • Please make sure you include your new abstract number that you have received in your abstract notification on your ePoster.

  • QR codes are not permitted on posters. 

  • Choose one of our pre-designed templates (optional).

  • Format of the ePoster is landscape/horizontal.

  • Place a heading that runs the full width of the ePoster at the top in a large-sized type.

  • The text should be no less than 8 mm (22 point font) and preferably larger.

  • Use a constant font throughout the ePoster.

  • Use a black and bold type to ensure legibility and let your important points stand out.

  • We suggest that you show the preferred sequence in which your ePoster should be reviewed; this can be done by using 3 – 5 columns so the eye movement is down the columns.

  • Highlight your main findings. Don’t hide your conclusions, consider putting them at the top of the right column or alternatively start with the Conclusions. Otherwise, we suggest that you structure your ePoster by Introduction, Methods, Results, and Conclusions. State your aims in the end of the introduction.

  • The figures and tables should cover approximately 50% of the ePoster area.


Other Recommendations: 

  • If possible, avoid abbreviations and acronyms, especially in the Conclusion section.

  • Seek simplicity, keep text to a minimum and avoid redundancies.

  • Feel free to provide one or more key references.


Audio Recording FAQ

  • Is there a deadline for audio narration recording?

  • If I submit before the deadline but then need to re-upload with new edits, am I able to do so?

  • If I re-upload a new ePoster, will my old audio files be deleted?
    No. The audio will remain the same unless a section of the ePoster is removed.

  • Are you limited to the number of narrations you can use?
    One per section maximum.

  • Can you narrate specific figures? Or only the larger sections in the ePoster template provided?
    Any section can have narration (except if you send us a video to add on a section).

  • Is there a time limit on the recorded narrations (per section or overall)?
    No. But please keep it short and concise.

  • Can audio files be uploaded?
    No. The audio must be recorded online in order to be directly uploaded in the correct format on the correct section.

  • When can I add audio narration?
    After you submit your ePoster file, we will process it to an electronic poster. This can take a few hours to a few days depending on the volume we receive. You will receive an email once the audio narration is ready to be recorded.


Having Trouble Logging in to Upload Your ePoster?

Please review the instructions to login to the MULTIEPOSTER site to upload your ePoster. 


Do You Have Any Questions or Need Any Assistance?

Please do not hesitate to contact MULTIEPOSTER via email.


Access ePosters Online

All ePoster and corresponding abstract will be posted on the ISTH 2021 Virtual Congress website.


Access Abstracts Online

All accepted abstracts will be published online via and on the online iPlanner on Friday, July 2 at 9:00 AM U.S. Eastern Time. In addition, they will be published as a supplement to the ISTH open access journal, Research and Practice in Thrombosis and Haemostasis after the congress.

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