Each year, the editors at Revise & Resub host a #10Queries event. Writers enter to win feedback on their query and first five pages.
On the day of the event, the editors post feedback on Twitter, using the hashtags #RevPit and #10Queries.
This is of course useful for the winners, but it's also beneficial for the entire writing community. Since many writers make similar mistakes when writing query letters, writers can typically find some useful feedback in the #10Queries tweets, even if their particular work was not analyzed.
In that vein, I've compiled my feedback from the 2020 event. I hope you find some words of wisdom to guide you through the query trenches.