Post-it note with handwritten message in blue marker. The message reads, in Hebrew: "Shalom" (Peace). Signed with a heart.

Post-it note with handwritten message in black ink. The message reads: "Etz Chaim Hi. It is a tree of life for those who hold fast to it."

Handwritten note written in brown marker on green coloring paper reading: "Let there be love and light in this world. Our thoughts are with this community. We send our love, light and peace. C. [last name redacted]."

Post-it note with handwritten message in green marker. The message reads: "In this time where hate is prevalent...let's remind each other of how much good there is and teach our children the importance of."

Handwritten note written on paper with the letterhead of the North Side Public Safety Council. The note reads: "Sharing our sincerest sympathies" and is signed by the officers of this council. A map of the various neighborhoods in the North Side and a blue line design below.

Handmade card in watercolor, marker, and ink on paper. The card features a quote from 1 Corinthians 12:12 on the front. It is signed on the back: "With love, Katie and Meagan and Mark."

Post-it note with handwritten message in green marker. The message reads: "Love Wins [heart]."

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: "In as much as He loved us, I love you." The church's contact information is included on the back of the envelope.

Floral tag from floral arrangement sent by Michelle. The tag reads: "Shalom! Love, Michelle." The message is written in black marker on a printed tag with a green background and floral motifs.

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.

Business card for Richard C. Yeomans, a pastor and chaplain who founded Emergency Ministry Services.

Double-sided letter. The front features a letter written in blue ink on a white background. The letter is addressed to the families and friends of the October 27 attack victims, the three congregations that gathered to pray at the Tree of Life synagogue, the people of Squirrel Hill, the people of Pittsburgh, as well as all citizens of the world. The addressees are listed in six respective hearts in the upper center. The hearts are surrounded by the branches of two trees which frame either side of the letter.

Grey and black sticker with the words: "You are beautiful" on the front. The back contains a hashtag and web link to the "You Are Beautiful" company website.

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.

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 note written in black marker on white paper with the first names of the eleven victims of the October 27 attack. Creasing and staining due to exposure to the elements at the Wilkins memorial.

Letter from a member of the Point Loma Community Presbyterian Church in San Diego, California. The letter reads: "Dear Friends at Tree of Life Synagogue, My heart hurts and aches for the tragedy and violence you have seen. I have thought about it many times as I sit in my own church with family and friends. May God wake with you always, ALL ways, may His breath be in yours, may you heal and grow together from this horrible loss. With much love, Katie [last name redacted] from PLCPC.

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.

Black and white reproduction of an illustration originally printed in a newspaper, showing synagogue. Cropped selection from larger image.