What reading level is the Baby-Sitters Little Sister series?

The Baby-Sitters Little Sister series by Ann M. Martin is at a Grades 2.6–4.3 reading level (average Grade 3.1). Intended for Middle Grades (Ages 9–12). There are 86 books in the series.

What order should I read the Baby-Sitters Little Sister books?

The Baby-Sitters Little Sister series has 86 books in order: 1. Bsls #39, 2. Bsls #99, 3. Karen's baby, 4. Karen's Baby-Sitter, 5. Karen's Big Fight, and 81 more.

What age is the Baby-Sitters Little Sister series appropriate for?

The Baby-Sitters Little Sister series is recommended for Middle Grades (Ages 9–12). The average content intensity is 1.1/5.

Baby-Sitters Little Sister Books in Order

86 books by Ann M. Martin. Reading level: Grades 2.6–4.3. Middle Grades (Ages 9–12).

Books

Grades 2.6–4.3

Reading Level

1.1/5

Avg. Intensity

Middle Grades

Content Intensity Across the Series

Varies

Content intensity ranges from Gentle to Moderate across the series.

First book Latest book

Baby-Sitters Little Sister Reading Order

#	Title	Reading Level	Content
1	Bsls #39 Ann M. Martin	Level 3	Gentle
2	Bsls #99 Ann M. Martin	Level 3-4	Gentle
3	Karen's baby Ann M. Martin	Level 2-3	Gentle
4	Karen's Baby-Sitter Ann M. Martin	Level 3	Gentle
5	Karen's Big Fight Ann M. Martin	Level 3-4	Gentle
6	Karen's Big Job Ann M. Martin	Level 3-4	Gentle
7	Karen's big joke Ann M. Martin	Level 2-3	Gentle
8	Karen's Big Lie (Baby-Sitter's Little Sister #38) Ann M. Martin	Level 3-4	Gentle
9	Karen's Big Move (Baby-Sitters Little Sister) Ann M. Martin	Level 3-4	Gentle
10	Karen's big sister Ann M. Martin	Level 3-4	Gentle
11	Karen's big top Ann M. Martin	Level 3	Gentle
12	Karen's birthday Unknown	Level 3	Mild
13	Karen's Black Cat (Baby-Sitters Little Sister) Ann M. Martin	Level 3-4	Gentle
14	Karen's bully Ann M. Martin	Level 2-3	Mild
15	Karen's Bunny Ann M. Martin	Level 3-4	Gentle
16	Karen's Campout Ann M. Martin, Susan Tang	Level 3-4	Gentle
17	Karen's Candy Ann M. Martin	Level 2-3	Gentle
18	Karen's carnival Ann M. Martin	Level 2-3	Gentle
19	Karen's Cartwheel Unknown	Level 2-3	Gentle
20	Karen's Chain Letter (Baby-Sitters Little Sister) Ann M. Martin	Level 3-4	Gentle
21	Karen's Christmas tree Ann M. Martin	Level 3-4	Gentle
22	Karen's County Fair (Baby-Sitters Little Sister) Ann M. Martin	Level 3	Gentle
23	Karen's cowboy Ann M. Martin	Level 4-5	Gentle
24	Karen's doll hospital Ann M. Martin	Level 3	Gentle
25	Karen's Ducklings Unknown	Level 3-4	Gentle
26	Karen's Easter parade Ann M. Martin	Level 3-4	Gentle
27	Karen's Fishing Trip (Baby-Sitters Little Sister) Ann M. Martin	Level 3-4	Gentle
28	Karen's ghost Unknown	Level 3-4	Gentle
29	Karen's gift Ann M. Martin	Level 3-4	Gentle
30	Karen's goldfish Ann M. Martin	Level 3	Gentle
31	Karen's good-bye Ann M. Martin	Level 2-3	Gentle
32	Karen's haircut Ann M. Martin	Level 3	Gentle
33	Karen's Half Birthday (Baby-Sitters Little Sister) Ann M. Martin	Level 3-4	Gentle
34	Karen's home run Ann M. Martin	Level 2-3	Gentle
35	Karen's ice skates Unknown	Level 3-4	Mild
36	Karen's in Love Unknown	Level 3	Gentle
37	Karen's Island Adventure Ann M. Martin	Level 3-4	Mild
38	Karen's Kite Ann M. Martin	Level 3-4	Gentle
39	Karen's kittens Ann M. Martin	Level 2-3	Gentle
40	Karen's kittycat club Ann M. Martin	Level 2-3	Gentle
41	Karen's lemonade stand Unknown	Level 3-4	Gentle
42	Karen's Little Sister Ann M. Martin	Level 3	Gentle
43	Karen's Lucky Penny Ann M. Martin	Level 3	Gentle
44	Karen's Magic Garden Ann M. Martin	Level 3-4	Gentle
45	Karen's Mermaid Ann M. Martin	Level 3	Gentle
46	Karen's Monsters (Baby-Sitters Little Sister) Ann M. Martin	Level 3	Gentle
47	Karen's mystery Ann M. Martin	Level 2-3	Gentle
48	Karen's Nanny Unknown	Level 3-4	Gentle
49	Karen's new bike Ann M. Martin	Level 3	Gentle
50	Karen's new friend Unknown	Level 2-3	Gentle
51	Karen's New Holiday (Baby-Sitter's Little Sister #112) Ann M. Martin, Susan Tang	Level 3-4	Gentle
52	Karen's New Puppy Ann M. Martin	Level 3	Gentle
53	Karen's new teacher Unknown	Level 3	Gentle
54	Karen's newspaper Ann M. Martin, Susan Tang	Level 3-4	Gentle
55	Karen's Paper Route (Baby-Sitters Little Sister) Unknown	Level 3-4	Gentle
56	Karen's Pilgrim (Baby-Sitters Little Sister) Ann M. Martin	Level 3-4	Gentle
57	Karen's pizza party Ann M. Martin, Susan Tang	Level 3-4	Gentle
58	Karen's Plane Trip Ann M. Martin	Level 2-3	Gentle
59	Karen's pony camp Ann M. Martin	Level 3-4	Gentle
60	Karen's prize. Ann M. Martin	Level 2-3	Gentle
61	Karen's Promise Ann M. Martin	Level 4-5	Gentle
62	Karen's runaway turkey Ann M. Martin	Level 3-4	Gentle
63	Karen's school Ann M. Martin, Susan Tang	Level 3	Gentle
64	Karen's School Bus Ann M. Martin	Level 2-3	Gentle
65	Karen's School Picture Ann M. Martin, Susan Tang	Level 3-4	Gentle
66	Karen's school trip Unknown	Level 2-3	Gentle
67	Karen's secret Ann M. Martin	Level 2-3	Mild
68	Karen's Show and Share Ann M. Martin	Level 3-4	Gentle
69	Karen's Ski Trip Ann M. Martin	Level 3-4	Gentle
70	Karen's sleepover Ann M. Martin	Level 2-3	Gentle
71	Karen's Snow Princess Ann M. Martin	Level 3-4	Gentle
72	Karen's Spy Mystery Ann M. Martin	Level 3-4	Mild
73	Karen's stepmother Ann M. Martin	Level 3	Mild
74	Karen's surprise Ann M. Martin	Level 3-4	Gentle
75	Karen's Swim Meet Ann M. Martin	Level 3-4	Gentle
76	Karen's Tattletale Ann M. Martin	Level 3	Gentle
77	Karen's tea party Ann M. Martin	Level 2-3	Gentle
78	Karen's toothache Ann M. Martin, Susan Tang	Level 3-4	Mild
79	Karen's Toys Ann M. Martin	Level 3-4	Gentle
80	Karen's turkey day Ann M. Martin	Level 3-4	Mild
81	Karen's Two Families Ann M. Martin	Level 2-3	Mild
82	Karen's unicorn Ann M. Martin	Level 3-4	Gentle
83	Karen's wish Ann M. Martin	Level 3	Moderate
84	Karen's witch Ann M. Martin	Level 2-3	Gentle
85	Karen's worst day Ann M. Martin	Level 2-3	Gentle
86	Karen's yo-yo Ann M. Martin	Level 4-5	Gentle

All Baby-Sitters Little Sister Books

Bsls #39

Ann M. Martin

Bsls #39

Ann M. Martin

Level 3 Gentle

Bsls #99

Ann M. Martin

Bsls #99

Ann M. Martin

Baby-Sitters Little Sister Books in Order

Content Intensity Across the Series

Baby-Sitters Little Sister Reading Order

All Baby-Sitters Little Sister Books

Bsls #39

Bsls #99

Karen's baby

Karen's Baby-Sitter

Karen's Big Fight

Karen's Big Job

Karen's big joke

Karen's Big Lie (Baby-Sitter's Little Sister #38)

Karen's Big Move (Baby-Sitters Little Sister)

Karen's big sister

Karen's big top

Karen's birthday

Karen's Black Cat (Baby-Sitters Little Sister)

Karen's bully

Karen's Bunny

Karen's Campout

Karen's Candy

Karen's carnival

Karen's Cartwheel

Karen's Chain Letter (Baby-Sitters Little Sister)

Karen's Christmas tree

Karen's County Fair (Baby-Sitters Little Sister)

Karen's cowboy

Karen's doll hospital

Karen's Ducklings

Karen's Easter parade

Karen's Fishing Trip (Baby-Sitters Little Sister)

Karen's ghost

Karen's gift

Karen's goldfish

Karen's good-bye

Karen's haircut

Karen's Half Birthday (Baby-Sitters Little Sister)

Karen's home run

Karen's ice skates

Karen's in Love

Karen's Island Adventure

Karen's Kite

Karen's kittens

Karen's kittycat club

Karen's lemonade stand

Karen's Little Sister

Karen's Lucky Penny

Karen's Magic Garden

Karen's Mermaid

Karen's Monsters (Baby-Sitters Little Sister)

Karen's mystery

Karen's Nanny

Karen's new bike

Karen's new friend

Karen's New Holiday (Baby-Sitter's Little Sister #112)

Karen's New Puppy

Karen's new teacher

Karen's newspaper

Karen's Paper Route (Baby-Sitters Little Sister)

Karen's Pilgrim (Baby-Sitters Little Sister)

Karen's pizza party

Karen's Plane Trip

Karen's pony camp

Karen's prize.

Karen's Promise

Karen's runaway turkey

Karen's school

Karen's School Bus

Karen's School Picture

Karen's school trip

Karen's secret

Karen's Show and Share

Karen's Ski Trip

Karen's sleepover

Karen's Snow Princess

Karen's Spy Mystery

Karen's stepmother

Karen's surprise

Karen's Swim Meet

Karen's Tattletale