A Reader in a Christian Science church is a member of the congregation who has been elected to serve in one of two positions responsible for church services.
 Each week's sermon in Christian Science churches is outlined in the "Christian Science Quarterly", prepared months in advance, and is the same in all Christian Science churches, worldwide.
 A lay church, it has no clergy; rather, the sermons consist of passages from the "Bible" and the Christian Science textbook, are studied as lessons during the week and are read aloud to the congregation on the Sunday following.
The Church of Christ, Scientist was founded in 1879 in Boston, Massachusetts, by Mary Baker Eddy, author of "Science and Health with Key to the Scriptures," and founder of Christian Science.
 The church was founded "to commemorate the word and works of [Christ Jesus]" and "reinstate primitive Christianity and its lost element of healing".
 Sunday services are held throughout the year and weekly testimony meetings are held on Wednesday evenings, where following brief readings from the Bible and the Christian Science textbook, those in attendance are invited to give testimonies of healing brought about through Christian Science prayer.
The Christian Science Sentinel (originally the "Christian Science Weekly") is a magazine published by the Christian Science Publishing Society based in Boston, Massachusetts.
 The magazine was launched by Mary Baker Eddy in 1898.
 It includes articles, editorials, and accounts of healings from a Christian Science point of view.
The Christian Science Journal is an official monthly publication of the Church of Christ, Scientist through the Christian Science Publishing Society, founded in 1883 by Mary Baker Eddy.
 It is designed to demonstrate the practical applications of Christian Science healing practice.
The Herald of Christian Science was first published in 1903 in response to the demand for a monthly publication on Christian Science in Germany.
 Due to an increasing demand for Christian Science Literature from other countries, the "Herald" grew to include twelve different languages.
 Until the 90’s the magazine was bilingual, with English and translated texts side by side.
 Currently the "Herald" is available in fourteen languages, giving readers around the world an understanding of Christian Science practice.
 Along with articles and accounts of healing, each issue includes a directory of Christian Science churches, practitioners and other listings applicable to each language.
 "The Herald" is also produced as a radio program in five languages.
The Christian Science Pleasant View Home is a historic senior citizen residential facility located at 227 Pleasant Street in Concord, New Hampshire, in the United States, It was built in 1927 by the Christian Science Board of Directors as a retirement home for aged Christian Science practitioners and other workers in the cause of Christian Science and occupies the site of "Pleasant View", Mary Baker Eddy's last home before moving to Chestnut Hill, Massachusetts, in 1908.
 It is now Pleasant View Retirement, a senior independent living facility.
 On September 19, 1984, it was added to the National Register of Historic Places.
A Christian Science practitioner is an individual who prays for others according to the teachings of Christian Science.
 Treatment is non-medical, rather it is based on the Bible and the Christian Science textbook, "Science and Health with Key to the Scriptures" (1875) by Mary Baker Eddy (1821–1910), who "discovered" Christian Science in 1866 and founded the Christian Science church in 1879.
 According to the church, Christian Science practitioners address physical conditions, as well as relationship or financial difficulties and any other problem or crisis.
 Practitioners are either "listed" or "unlisted," a designation that refers to a form of international accreditation maintained by The Mother Church, in Boston, Massachusetts.
The Christian Science Hymnal is a collection of hymns sanctioned for use in Christian Science services including Sunday services and Wednesday evening testimony meetings, as well as in occasional informal hymn sings.
 It includes both traditional Christian hymns, traditional hymns with minor adaptations better suiting Christian Science theology, and hymns unique to Christian Science, including seven poems by the denomination's founder Mary Baker Eddy set to various tunes: "Christ, My Refuge", "Christmas Morn", "Communion Hymn", "Feed My Sheep", "Love", "Mother's Evening Prayer", and "Satisfied".
 Found in the Supplement section are the hymns, "I Need Thee Every Hour", "I'm a Pilgrim and I'm a Stranger", and "Eternity", which were originally included in the Hymnal in accordance with [Mrs. Eddy's] wish."
Philadelphia (also called "Philadelphia magazine" or referred to by the nickname "Phillymag") is a regional monthly magazine published in Philadelphia, Pennsylvania by the Lipson family of Philadelphia and its company, Metrocorp.
The "Christian Science Quarterly" (Bible Lessons) is a publication of the Christian Science Publishing Society that sets out the Bible lessons for all students of Christian Science.
 Each lesson serves as the Sunday sermon in church and is studied for the week preceding the Sunday on which it is read as the sermon.

Question: Christian Science Sentinel and Philadelphia, is which type of publication?
Answer: magazine