The Adventures of Sherlock Holmes for English learners: level, words and how to read it

What the book is about

Dr Watson tells twelve cases of his friend Sherlock Holmes, the consulting detective of 221B Baker Street. A client arrives with a strange problem, Holmes listens, notices details nobody else sees and solves the mystery, often in a way the police did not expect.

Among the stories are “A Scandal in Bohemia”, where a woman outwits Holmes, “The Red-Headed League”, about a very odd job offer, and “The Speckled Band”, one of the most famous locked-room mysteries. Each story stands on its own and takes about an hour to read.

Themes

• Observation and logic. Holmes reads people from their hands, clothes and shoes. The stories are a training in noticing details.
• Victorian London. Fog, cabs, gas lamps, rich clients and the poor East End: a vivid picture of the city in the 1890s.
• Justice and the law. Holmes does not always hand the culprit to the police. Sometimes he decides that a person has suffered enough.
• Friendship. The calm, practical Watson and the brilliant, moody Holmes are one of literature’s great pairs.

How hard is The Adventures of Sherlock Holmes to read in English?

We measured how much of the book is covered by the most frequent English words (character names excluded). If you know the 2,000 most common words, you will recognise about 86.6% of the words in the book, which leaves roughly 13 unknown words in every hundred. With 5,000 words it is about 8 in a hundred, and with 10,000 words about 4.

For comfortable reading without help, researchers aim for about 98% known words (more in our guide). By vocabulary alone this is a B2 book; with tap-to-translate for the words you do not know, it is readable from B1–B2. It is slightly harder than Alice’s Adventures in Wonderland and slightly easier than The Secret Garden.

What is hard: Victorian vocabulary (hansom, waistcoat, mantelpiece), long sentences when clients tell their stories, and Holmes’s quick chains of deductions full of precise details. What helps a lot: every story is short and complete, the structure is always the same (a visitor, a story, an investigation, an explanation), and much of the vocabulary repeats from story to story.

Our take: one of the best first books in the original for B2 readers. At B1 it works too with tap-to-translate: start with a single story rather than the whole book.

Words to know before you start

These words appear often in the book but are much rarer in everyday modern English. Learning them in advance makes the first chapters noticeably easier.

How to read it in the original

1. Read one story at a sitting. About 9,000 words, roughly an hour. Finishing a whole story keeps the motivation high.
2. Start with “The Red-Headed League”. It is funny, clear and has a satisfying solution.
3. Use the pattern. Every story follows the same steps, so you always know where you are, even when the details are hard.
4. Try to solve it first. Stop before Holmes explains and guess. You will reread the key passages more carefully, which is great for vocabulary.

The first line

To Sherlock Holmes she is always the woman. I have seldom heard him mention her under any other name.

Arthur Conan Doyle, The Adventures of Sherlock Holmes

the womanthe one special woman

phrase in context

Tap a highlighted word

Watson is talking about Irene Adler, the only person who ever beat Holmes at his own game. The opening story shows that even the great detective can be wrong.

Frequently asked questions