Son of Doctor Esker's Notebook (The Sequel)

Hint
Small #1	333	632	425	385	351	206	413	401	151	311
Small #2	331	648	427	400	338	168	404	415	164	293
Small #3	295	628	395	407	353	156	390	403	146	280
Medium #1	326	656	393	401	294	143	391	437	147	297
Medium #2	306	634	340	383	292	143	355	435	138	304
Medium #3	313	648	306	380	237	134	338	439	139	272
Large #1	269	714	318	418	208	157	325	451	159	314
Large #2	251	676	279	422	248	152	285	427	149	294
Large #3	236	563	299	323	221	207	315	435	161	353

Return of Doctor Esker's Notebook (The Other Sequel)

Hint
Small #1	121	185	168	66	152	106	76	101	138	109
Small #2	113	177	161	60	160	100	75	98	138	108
Small #3	109	183	166	60	154	89	73	103	129	113
Medium #1	110	176	180	73	161	94	80	104	156	114
Medium #2	109	166	188	71	157	91	88	98	149	98
Medium #3	113	168	186	73	154	81	77	98	130	102
Large #1	113	175	207	78	165	76	76	99	107	123
Large #2	76	157	170	77	179	67	85	94	99	130
Large #3	73	160	161	95	152	71	73	67	70	124

Doctor Esker's Notebook IV: The Moroccan Affair
(The Other Other Sequel)

Hint
Small #1	22	20	27	52	46	50	32	56	69	22
Small #2	22	20	25	48	48	50	31	57	57	21
Small #3	19	19	24	48	45	62	28	55	64	24
Medium #1	20	17	25	55	46	58	30	54	63	26
Medium #2	16	13	25	55	40	46	27	51	65	19
Medium #3	13	13	26	43	37	42	30	46	70	21
Large #1	13	12	26	40	35	50	26	46	52	22
Large #2	10	12	27	31	25	39	22	42	34	21
Large #3	18	18	23	35	25	41	29	42	33	32

The hints are sorted by how much help they give you.
The last Large Hint on each page comes very close to just giving you the solution.