Doctor Who Adventures (in-universe)

Doctor Who Adventures was a magazine about the television series, Doctor Who. It usually contained stories about the Doctor, among other features.

The Doctor themself, in their Eleventh and Twelfth incarnations, frequently wrote letters to the magazine's readers, welcoming them to the issue and talking about what they could expect within its pages, as well as updating them on their recent exploits. (PROSE: Hello, Time Travellers!, Dear Readers)

History
A "special Christmas issue" was released in December 2012. (PROSE: Hello, Time Travellers!)

Another issue came with an "amazing" advent calendar, which had a monster behind every door. (PROSE: Hello There!)

At some point, the Twelfth Doctor began writing letters to the magazine's readers, the first of which was done at Clara Oswald's urging. (PROSE: Dear Readers)

An issue was released shortly after the broadcast of television episodes involving Ashildr and Zygons. (PROSE: Dear Readers)

An issue was released in December 2015. It allegedly contained serious information which could help the reader save the planet, as well as instructions on how to make an evil snowman bauble for their Christmas tree. (PROSE: Dear Readers)

An issue was released in January 2016. It gave readers the chance to relive their favourite moments from the latest series, instructions from Davros on how to make some Hand Mines, and a new adventure for the Paternoster Gang. (PROSE: Dear Readers)

An issue was released in February. It contained a story about the Twelfth Doctor's then-recent adventure to explore the legendary Spice Route. (PROSE: Dear Readers)