Lemn Sissay's new pen pal is a schoolboy from Northern Ireland. They compare notes on Halloween, Harry Potter and learning to act as each takes to the stage at the same time. Show more

Lyse Doucet's pen pal is Afghan fighter, poet and diplomat Masood Khalili, who she first met in the 1980s. In a poignant series of letters, they discuss war, poetry and cancer. Show more

Scientist Jim Al-Khalili's new pen pal lives off-grid on a remote Canadian island. They start a fascinating correspondence on zombies, music festivals and the meaning of life. Show more

Louiza Patikas, better known to Radio 4 listeners as Helen Archer, shares a love of Greek life and culture with her pen pal, fellow actor Angeliki Papoulia. Show more

In a new series celebrating the art of letter writing, Fi Glover explores views on motherhood, Thanksgiving and Donald Trump with her new pen-pal in Ohio, Ann Plumley. Show more