LEGO Reviews Ideas21315

Pop-Up Book

Name: LEGO Pop-Up Book 21315
Brand: LEGO
SKU: 21315
Rating: 4.8 (958 reviews)

88 · HIGHLY RECOMMENDEDINVESTMENT GRADE: AA2018859 pcsHigh agreement · 97%

Expert reviews

2analyzed

Owner ratings

958

Consensus

BUY

BrickScore

Highly Recommended

Owners

Synthesized Verdict

"The Pop-Up Book earns its BrickScore of 88.4 and Highly Recommended tier decisively: nearly 1,000 owners rate it 4.8 out of 5, and reviewers call it one of the most creative sets LEGO has ever produced, with a working pop-up mechanism, two complete fairy-tale scenes, and printed parts throughout."

Reviewers are nearly unanimous in their enthusiasm for the Pop-Up Book (21315), praising its inventive hinge-and-swivel pop-up mechanism and the dual fairy-tale scenes housed within one set. The BrickScore of 88.4 reflects a highly recommended title, and owner sentiment is exceptionally strong: 958 ratings average 4.8 out of 5 across Amazon and LEGO.com, with 99% of LEGO buyers saying they would recommend it. Critics and buyers agree that this is one of the most creative Ideas sets ever produced.

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LOVED (7)

01Ingenious pop-up book mechanism using hinges and swivels to recreate a classic paper-craft technique in brick form
02Two complete interchangeable story inserts (Little Red Riding Hood and Jack and the Beanstalk) included in one set
03Rising beanstalk action when opening the Jack insert, widely called the highlight of the mechanical movement
04Unique, highly detailed minifigures including a Little Red Riding Hood and a Jack microfigure
05All decorated elements are printed, no stickers
06Playful instruction booklet covering the fan designers, LEGO designers, and pop-up book history
07Inspires custom insert creation, giving the set virtually endless replayability

CRITICIZED (4)

01Minifigures can be difficult to seat properly when closing the book
02Dark green grass areas on both builds are somewhat plain; some reviewers wished for more decorative tile variety
03The large brown cover tiles have a more matte finish compared to standard glossy tiles, a minor inconsistency
04Age recommendation of 12+ does not reflect the actual build complexity, which younger builders can handle

What reviewers are saying

"This set epitomises what the Ideas platform is for, and what it's best at: bringing sets to market that do not fit into LEGO's normal product portfolio."

Brickset Reviews

"I'm very happy to say right from the start that this is a print not a sticker on this huge 8x16 uh tile"

JANG's LEGO Reviews

Ecosystem

21305 Maze — Both are Ideas sets designed by Jason Allemann, with 21315 being the second set to pass review that he has a hand in after 21305.

Original fan submission (Popup Book Ideas submission) — The LEGO production version improves significantly on the original fan submission. JANG states the exterior is '10 times as good,' with better graphic design and attention to detail. However, some elements like interior foliage and the closure strap were omitted. The overall structure and mechanism remained close to the original.

Ultimate Collector Series sets with large stickers — Unlike UCS sets that require large stickers, this set features printed tiles, which JANG strongly prefers and considers a significant improvement.

Previous LEGO collectible minifigure series versions of Little Red Riding Hood — The new Little Red Riding Hood is more detailed and updated compared to the previous collectible minifigure series version, though the previous version was similar in spirit.

IdeasTier 2Investment Grade

By Reviewer · 2

Avg score

Consensus

BUY

Brickset Reviews

Editorial Source

BUY

"This set epitomises what the Ideas platform is for, and what it's best at: bringing sets to market that do not fit into LEGO's normal product portfolio."

Key Pros

✓Exceptional minifigure selection (all four figures superb, potential collector's items)
✓Innovative pop-up mechanism that works well
✓Faithful to fan designers' original vision yet more polished

Key Cons

✕Printed tiles for the spine would have been nicer (minor)
✕The original clasp from the Ideas submission is missing (though noted as likely unnecessary)

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JANG's LEGO Reviews

Expert Video Source

BUY

"I'm very happy to say right from the start that this is a print not a sticker on this huge 8x16 uh tile"

Key Pros

✓Printed tiles instead of stickers on the large exterior
✓Simple, smooth popup mechanism with no illegal or questionable building
✓All pieces fit together well with acceptable play tolerances

Key Cons

✕Interior details are somewhat simplified/plain compared to original fan submission
✕Missing a closure strap on the Jack and the Beanstalk version that was in the original fan submission

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Dimensional Analysis

Investment Layer

Buy now (2)Wait for sale (0)

Value drivers

Brickset Reviews: The minifigures are the primary value driver, particularly the first-ever pink minifig legs and the exceptional character selection

JANG's LEGO Reviews: The minifigures (particularly Little Red Riding Hood with new printing and the giant with detailed accessories) are valuable components, though not necessarily exclusive/rare variants.

Exclusivity

Brickset Reviews: LEGO Ideas exclusive

JANG's LEGO Reviews: LEGO Ideas exclusive; limited availability through LEGO channels

Resale

Brickset Reviews: Likely positive, though not explicitly stated. The set's unique Ideas platform provenance, exceptional minifigures, and innovative mechanism suggest strong aftermarket appeal. Commenters mention plans to buy multiple copies.

Minifigures & Standout Parts

In this set (5)

Little Red Riding Hood

$11

The Wolf

Grandmother

The Giant

Jack Statuette / Trophy (6251962)

Standout parts (per reviewers)

2x2 / 1x4 brick hinges
New in this set for the pop-up mechanism
1x12 bricks in dark green
New in this set
Brown 8x16 tiles
New in this colour (dark green), with one printed with the book's title rather than a sticker
1x6 tiles printed with fan designer names
Printed detail recognizing fan designers
8x16 printed tile
Large tile is printed rather than requiring stickers, which JANG strongly prefers. This eliminates the problem of large stickers on Ultimate Collector Series sets. Multiple printed tiles needed for the full exterior.
Recolored hood piece (from Ninjago Lloyd)
Used for Little Red Riding Hood minifigure; effective repurposing of existing mold in new color scheme.

What Owners Say · summarized from 50 written reviews (LEGO, Amazon, Walmart)

Owners love the innovative pop-up book concept, ingenious mechanics (especially the beanstalk), detailed minifigures, and creative potential, though several wish for better storage of unused scenes and the ability to display both stories simultaneously in the book.

COMMON PRAISE