Square card with white and yellow text against blue background. Card reads, "Mitzvah4Pittsburgh. Some spread darkness. We spread light. Choose a good deed. Choose a Mitzvah. Add light to the world," followed by four options and a place for respondents to list their name and email address. Some names and email addresses have been redacted for privacy.

Card made by a student from the George Washington University Hillel. Front cover reads: "We Are One" with an illustrated heart below. The inside reads: "The GW community sends prayers and holds your community in our hearts. We will find a way to come out stronger."

Card from a congregant at the Holy Angels Parish. The front cover contains a stock illustration of a haloed dove flying in front of Noah's ark. The inside reads: "Julianna N. I am praying for everyone who died and I am very sorry for everyone who lost their loved ones. But I am happy that you are all in heaven. Many pray[er]s. Holy Angels CCD." Spelling errors corrected for clarity.

Business card from Art of Steel, Ltd., a gift store located in Pittsburgh's Strip District neighborhood.

Note from a member of The Church at Severn Run in Severn, Maryland. The note is enclosed in an envelope with church letterhead, reading: "The Church at Severn Run: Love Well, Live Jesus, Believe Big!" The note inside reads: "We mourn for you loss and we pray the God of Abraham embraces you in fresh, new ways today and always! Shalom!" The church's contact information is included on the back of the envelope.

Letter from a member of the Point Loma Community Presbyterian Church in San Diego, California. The letter is dated 11/4/2018 and reads: "To my brothers and sisters at the Tree of Life Synagogue: When I was young in Denver, Colorado our Congregation Church (First Plymouth) and the Temple Micah shared our building. The Rabbi was wonderful and we combined our youth groups and spent weekends and retreats together. It was highlight of my life to learn how common our shared heritage and beliefs were across what had been presented to me as "separateness." So untrue!!

Post-it note with handwritten message in black and red marker. The message reads: "If you mess with us. You mess with the entire world." Signed with a heart, colored in red and outlined in black.

Handmade card with black and white stripes with a printed graphic with a blue Star of David overlaid with eleven candles and the message "Our hearts cry for Shalom" in the upper center. The Stronger Than Hate hashtag appears below. A whole was punched in the upper center.

Post-it note with handwritten message in blue ink. The message reads: "Find strength in community today and hope for a better tomorrow." A heart appears between the third and fourth line on the right.

Square card with white and yellow text against blue background. Card reads, "Mitzvah4Pittsburgh. Some spread darkness. We spread light. Choose a good deed. Choose a Mitzvah. Add light to the world," followed by four options and a place for respondents to list their name and email address. Some names and email addresses have been redacted for privacy.

Handwritten card written in pencil on paper. The card reads: "Dear Family, Hello my name is Elisha D. I am from Netivot, we stand together with you because a loss for you is a loss for us. May you only see simchas."

Hallmark card from a member of St. Peter's Episcopal Church in Londonderry, New Hampshire. The envelope features an illustrated heart. The front cover reads: "Peace" and features a sandy landscape with a blue sky and orange flowers. The inside reads: "We are sending you so much love- and will stand with you in peace forever- with you in peace. Steve and Bailey."

Handwritten note written in black ink on white paper with the full names of the eleven victims of the October 27 attack. Navy blue line appears on the upper edge on the back. Creasing and staining due to exposure to the elements at the Wilkins memorial.

Card with pre-printed message reading, "'Sorry is not a big enough word to express the concern we feel for you." Interior includes handwritten signatures and messages from various members of the staff."

Typed note from the members and friends of First Presbyterian Church in Jamestown, Ny. The text of Psalm 23 appears below. Extensive staining due to exposure to the elements at the Wilkins memorial.

Handwritten letter written in green ink on white coloring paper, folded in half, from Lizzie, age twenty. Addressed to Lizzie's community in Pittsburgh. Lizzie explains her impulse to write this letter: "I'm not sure how to put this in words, but I do know that I have the urge to send something." Lizzie identifies herself as Jewish in her card. Tearing in upper center may be due to exposure to the elements sustained at the Wilkins memorial.

Folded card with marker illustration. Cover features illustration of Star of David inside heart under name "Aden." Interior features illustration of five balloons and words, "We want you to know that you are not alone. Sending warm thoughts and hugs to your community. Beth Chai."

Post-it note with handwritten message in blue marker. The message reads: "We are with you- Love is stronger than Hate."